Number of teams:   cost[0,0,1] =  0;
  cost[0,1,1] =  0;
  cost[0,2,1] =  100;
  cost[0,3,1] =  302;
  cost[0,4,1] =  48;
  cost[0,5,1] =  155;
  cost[0,6,1] =  273;
  cost[0,7,1] =  257;
  cost[0,8,1] =  95;
  cost[0,9,1] =  13;
  cost[0,10,1] =  352;
  cost[0,11,1] =  331;
  cost[0,12,1] =  60;
  cost[0,13,1] =  467;
  cost[0,14,1] =  325;
  cost[0,15,1] =  342;
  cost[0,16,1] =  249;
  cost[0,17,1] =  457;
  cost[0,18,1] =  152;
  cost[0,19,1] =  12;
  cost[0,20,1] =  394;
  cost[0,21,1] =  212;
  cost[1,0,1] =  190;
  cost[1,1,1] =  100;
  cost[1,2,1] =  0;
  cost[1,3,1] =  337;
  cost[1,4,1] =  106;
  cost[1,5,1] =  76;
  cost[1,6,1] =  304;
  cost[1,7,1] =  27;
  cost[1,8,1] =  407;
  cost[1,9,1] =  394;
  cost[1,10,1] =  119;
  cost[1,11,1] =  246;
  cost[1,12,1] =  10;
  cost[1,13,1] =  421;
  cost[1,14,1] =  294;
  cost[1,15,1] =  166;
  cost[1,16,1] =  210;
  cost[1,17,1] =  68;
  cost[1,18,1] =  262;
  cost[1,19,1] =  224;
  cost[1,20,1] =  420;
  cost[1,21,1] =  110;
  cost[2,0,1] =  379;
  cost[2,1,1] =  302;
  cost[2,2,1] =  337;
  cost[2,3,1] =  0;
  cost[2,4,1] =  435;
  cost[2,5,1] =  142;
  cost[2,6,1] =  170;
  cost[2,7,1] =  409;
  cost[2,8,1] =  294;
  cost[2,9,1] =  183;
  cost[2,10,1] =  319;
  cost[2,11,1] =  23;
  cost[2,12,1] =  127;
  cost[2,13,1] =  142;
  cost[2,14,1] =  361;
  cost[2,15,1] =  234;
  cost[2,16,1] =  219;
  cost[2,17,1] =  181;
  cost[2,18,1] =  261;
  cost[2,19,1] =  142;
  cost[2,20,1] =  92;
  cost[2,21,1] =  380;
  cost[3,0,1] =  386;
  cost[3,1,1] =  48;
  cost[3,2,1] =  106;
  cost[3,3,1] =  435;
  cost[3,4,1] =  0;
  cost[3,5,1] =  317;
  cost[3,6,1] =  199;
  cost[3,7,1] =  270;
  cost[3,8,1] =  44;
  cost[3,9,1] =  268;
  cost[3,10,1] =  49;
  cost[3,11,1] =  268;
  cost[3,12,1] =  205;
  cost[3,13,1] =  159;
  cost[3,14,1] =  68;
  cost[3,15,1] =  125;
  cost[3,16,1] =  111;
  cost[3,17,1] =  210;
  cost[3,18,1] =  295;
  cost[3,19,1] =  36;
  cost[3,20,1] =  21;
  cost[3,21,1] =  478;
  cost[4,0,1] =  441;
  cost[4,1,1] =  155;
  cost[4,2,1] =  76;
  cost[4,3,1] =  142;
  cost[4,4,1] =  317;
  cost[4,5,1] =  0;
  cost[4,6,1] =  122;
  cost[4,7,1] =  14;
  cost[4,8,1] =  405;
  cost[4,9,1] =  356;
  cost[4,10,1] =  233;
  cost[4,11,1] =  103;
  cost[4,12,1] =  133;
  cost[4,13,1] =  376;
  cost[4,14,1] =  196;
  cost[4,15,1] =  30;
  cost[4,16,1] =  281;
  cost[4,17,1] =  299;
  cost[4,18,1] =  347;
  cost[4,19,1] =  481;
  cost[4,20,1] =  86;
  cost[4,21,1] =  392;
  cost[5,0,1] =  95;
  cost[5,1,1] =  273;
  cost[5,2,1] =  304;
  cost[5,3,1] =  170;
  cost[5,4,1] =  199;
  cost[5,5,1] =  122;
  cost[5,6,1] =  0;
  cost[5,7,1] =  176;
  cost[5,8,1] =  470;
  cost[5,9,1] =  294;
  cost[5,10,1] =  245;
  cost[5,11,1] =  112;
  cost[5,12,1] =  406;
  cost[5,13,1] =  456;
  cost[5,14,1] =  407;
  cost[5,15,1] =  442;
  cost[5,16,1] =  477;
  cost[5,17,1] =  402;
  cost[5,18,1] =  315;
  cost[5,19,1] =  38;
  cost[5,20,1] =  40;
  cost[5,21,1] =  329;
  cost[6,0,1] =  162;
  cost[6,1,1] =  257;
  cost[6,2,1] =  27;
  cost[6,3,1] =  409;
  cost[6,4,1] =  270;
  cost[6,5,1] =  14;
  cost[6,6,1] =  176;
  cost[6,7,1] =  0;
  cost[6,8,1] =  79;
  cost[6,9,1] =  63;
  cost[6,10,1] =  46;
  cost[6,11,1] =  456;
  cost[6,12,1] =  259;
  cost[6,13,1] =  77;
  cost[6,14,1] =  253;
  cost[6,15,1] =  75;
  cost[6,16,1] =  424;
  cost[6,17,1] =  251;
  cost[6,18,1] =  161;
  cost[6,19,1] =  333;
  cost[6,20,1] =  32;
  cost[6,21,1] =  296;
  cost[7,0,1] =  371;
  cost[7,1,1] =  95;
  cost[7,2,1] =  407;
  cost[7,3,1] =  294;
  cost[7,4,1] =  44;
  cost[7,5,1] =  405;
  cost[7,6,1] =  470;
  cost[7,7,1] =  79;
  cost[7,8,1] =  0;
  cost[7,9,1] =  107;
  cost[7,10,1] =  271;
  cost[7,11,1] =  131;
  cost[7,12,1] =  29;
  cost[7,13,1] =  243;
  cost[7,14,1] =  55;
  cost[7,15,1] =  472;
  cost[7,16,1] =  237;
  cost[7,17,1] =  457;
  cost[7,18,1] =  303;
  cost[7,19,1] =  275;
  cost[7,20,1] =  14;
  cost[7,21,1] =  149;
  cost[8,0,1] =  134;
  cost[8,1,1] =  13;
  cost[8,2,1] =  394;
  cost[8,3,1] =  183;
  cost[8,4,1] =  268;
  cost[8,5,1] =  356;
  cost[8,6,1] =  294;
  cost[8,7,1] =  63;
  cost[8,8,1] =  107;
  cost[8,9,1] =  0;
  cost[8,10,1] =  229;
  cost[8,11,1] =  299;
  cost[8,12,1] =  458;
  cost[8,13,1] =  201;
  cost[8,14,1] =  74;
  cost[8,15,1] =  51;
  cost[8,16,1] =  455;
  cost[8,17,1] =  149;
  cost[8,18,1] =  476;
  cost[8,19,1] =  222;
  cost[8,20,1] =  310;
  cost[8,21,1] =  325;
  cost[9,0,1] =  268;
  cost[9,1,1] =  352;
  cost[9,2,1] =  119;
  cost[9,3,1] =  319;
  cost[9,4,1] =  49;
  cost[9,5,1] =  233;
  cost[9,6,1] =  245;
  cost[9,7,1] =  46;
  cost[9,8,1] =  271;
  cost[9,9,1] =  229;
  cost[9,10,1] =  0;
  cost[9,11,1] =  351;
  cost[9,12,1] =  274;
  cost[9,13,1] =  230;
  cost[9,14,1] =  139;
  cost[9,15,1] =  405;
  cost[9,16,1] =  260;
  cost[9,17,1] =  383;
  cost[9,18,1] =  460;
  cost[9,19,1] =  249;
  cost[9,20,1] =  136;
  cost[9,21,1] =  434;
  cost[10,0,1] =  231;
  cost[10,1,1] =  331;
  cost[10,2,1] =  246;
  cost[10,3,1] =  23;
  cost[10,4,1] =  268;
  cost[10,5,1] =  103;
  cost[10,6,1] =  112;
  cost[10,7,1] =  456;
  cost[10,8,1] =  131;
  cost[10,9,1] =  299;
  cost[10,10,1] =  351;
  cost[10,11,1] =  0;
  cost[10,12,1] =  449;
  cost[10,13,1] =  218;
  cost[10,14,1] =  164;
  cost[10,15,1] =  376;
  cost[10,16,1] =  447;
  cost[10,17,1] =  463;
  cost[10,18,1] =  350;
  cost[10,19,1] =  165;
  cost[10,20,1] =  53;
  cost[10,21,1] =  401;
  cost[11,0,1] =  304;
  cost[11,1,1] =  60;
  cost[11,2,1] =  10;
  cost[11,3,1] =  127;
  cost[11,4,1] =  205;
  cost[11,5,1] =  133;
  cost[11,6,1] =  406;
  cost[11,7,1] =  259;
  cost[11,8,1] =  29;
  cost[11,9,1] =  458;
  cost[11,10,1] =  274;
  cost[11,11,1] =  449;
  cost[11,12,1] =  0;
  cost[11,13,1] =  394;
  cost[11,14,1] =  359;
  cost[11,15,1] =  30;
  cost[11,16,1] =  235;
  cost[11,17,1] =  131;
  cost[11,18,1] =  153;
  cost[11,19,1] =  103;
  cost[11,20,1] =  405;
  cost[11,21,1] =  384;
  cost[12,0,1] =  176;
  cost[12,1,1] =  467;
  cost[12,2,1] =  421;
  cost[12,3,1] =  142;
  cost[12,4,1] =  159;
  cost[12,5,1] =  376;
  cost[12,6,1] =  456;
  cost[12,7,1] =  77;
  cost[12,8,1] =  243;
  cost[12,9,1] =  201;
  cost[12,10,1] =  230;
  cost[12,11,1] =  218;
  cost[12,12,1] =  394;
  cost[12,13,1] =  0;
  cost[12,14,1] =  161;
  cost[12,15,1] =  141;
  cost[12,16,1] =  304;
  cost[12,17,1] =  410;
  cost[12,18,1] =  278;
  cost[12,19,1] =  254;
  cost[12,20,1] =  479;
  cost[12,21,1] =  206;
  cost[13,0,1] =  248;
  cost[13,1,1] =  325;
  cost[13,2,1] =  294;
  cost[13,3,1] =  361;
  cost[13,4,1] =  68;
  cost[13,5,1] =  196;
  cost[13,6,1] =  407;
  cost[13,7,1] =  253;
  cost[13,8,1] =  55;
  cost[13,9,1] =  74;
  cost[13,10,1] =  139;
  cost[13,11,1] =  164;
  cost[13,12,1] =  359;
  cost[13,13,1] =  161;
  cost[13,14,1] =  0;
  cost[13,15,1] =  371;
  cost[13,16,1] =  112;
  cost[13,17,1] =  177;
  cost[13,18,1] =  350;
  cost[13,19,1] =  463;
  cost[13,20,1] =  343;
  cost[13,21,1] =  404;
  cost[14,0,1] =  460;
  cost[14,1,1] =  342;
  cost[14,2,1] =  166;
  cost[14,3,1] =  234;
  cost[14,4,1] =  125;
  cost[14,5,1] =  30;
  cost[14,6,1] =  442;
  cost[14,7,1] =  75;
  cost[14,8,1] =  472;
  cost[14,9,1] =  51;
  cost[14,10,1] =  405;
  cost[14,11,1] =  376;
  cost[14,12,1] =  30;
  cost[14,13,1] =  141;
  cost[14,14,1] =  371;
  cost[14,15,1] =  0;
  cost[14,16,1] =  123;
  cost[14,17,1] =  291;
  cost[14,18,1] =  356;
  cost[14,19,1] =  154;
  cost[14,20,1] =  42;
  cost[14,21,1] =  3;
  cost[15,0,1] =  443;
  cost[15,1,1] =  249;
  cost[15,2,1] =  210;
  cost[15,3,1] =  219;
  cost[15,4,1] =  111;
  cost[15,5,1] =  281;
  cost[15,6,1] =  477;
  cost[15,7,1] =  424;
  cost[15,8,1] =  237;
  cost[15,9,1] =  455;
  cost[15,10,1] =  260;
  cost[15,11,1] =  447;
  cost[15,12,1] =  235;
  cost[15,13,1] =  304;
  cost[15,14,1] =  112;
  cost[15,15,1] =  123;
  cost[15,16,1] =  0;
  cost[15,17,1] =  408;
  cost[15,18,1] =  209;
  cost[15,19,1] =  387;
  cost[15,20,1] =  251;
  cost[15,21,1] =  370;
  cost[16,0,1] =  307;
  cost[16,1,1] =  457;
  cost[16,2,1] =  68;
  cost[16,3,1] =  181;
  cost[16,4,1] =  210;
  cost[16,5,1] =  299;
  cost[16,6,1] =  402;
  cost[16,7,1] =  251;
  cost[16,8,1] =  457;
  cost[16,9,1] =  149;
  cost[16,10,1] =  383;
  cost[16,11,1] =  463;
  cost[16,12,1] =  131;
  cost[16,13,1] =  410;
  cost[16,14,1] =  177;
  cost[16,15,1] =  291;
  cost[16,16,1] =  408;
  cost[16,17,1] =  0;
  cost[16,18,1] =  296;
  cost[16,19,1] =  323;
  cost[16,20,1] =  326;
  cost[16,21,1] =  292;
  cost[17,0,1] =  347;
  cost[17,1,1] =  152;
  cost[17,2,1] =  262;
  cost[17,3,1] =  261;
  cost[17,4,1] =  295;
  cost[17,5,1] =  347;
  cost[17,6,1] =  315;
  cost[17,7,1] =  161;
  cost[17,8,1] =  303;
  cost[17,9,1] =  476;
  cost[17,10,1] =  460;
  cost[17,11,1] =  350;
  cost[17,12,1] =  153;
  cost[17,13,1] =  278;
  cost[17,14,1] =  350;
  cost[17,15,1] =  356;
  cost[17,16,1] =  209;
  cost[17,17,1] =  296;
  cost[17,18,1] =  0;
  cost[17,19,1] =  21;
  cost[17,20,1] =  417;
  cost[17,21,1] =  175;
  cost[18,0,1] =  68;
  cost[18,1,1] =  12;
  cost[18,2,1] =  224;
  cost[18,3,1] =  142;
  cost[18,4,1] =  36;
  cost[18,5,1] =  481;
  cost[18,6,1] =  38;
  cost[18,7,1] =  333;
  cost[18,8,1] =  275;
  cost[18,9,1] =  222;
  cost[18,10,1] =  249;
  cost[18,11,1] =  165;
  cost[18,12,1] =  103;
  cost[18,13,1] =  254;
  cost[18,14,1] =  463;
  cost[18,15,1] =  154;
  cost[18,16,1] =  387;
  cost[18,17,1] =  323;
  cost[18,18,1] =  21;
  cost[18,19,1] =  0;
  cost[18,20,1] =  154;
  cost[18,21,1] =  58;
  cost[19,0,1] =  293;
  cost[19,1,1] =  394;
  cost[19,2,1] =  420;
  cost[19,3,1] =  92;
  cost[19,4,1] =  21;
  cost[19,5,1] =  86;
  cost[19,6,1] =  40;
  cost[19,7,1] =  32;
  cost[19,8,1] =  14;
  cost[19,9,1] =  310;
  cost[19,10,1] =  136;
  cost[19,11,1] =  53;
  cost[19,12,1] =  405;
  cost[19,13,1] =  479;
  cost[19,14,1] =  343;
  cost[19,15,1] =  42;
  cost[19,16,1] =  251;
  cost[19,17,1] =  326;
  cost[19,18,1] =  417;
  cost[19,19,1] =  154;
  cost[19,20,1] =  0;
  cost[19,21,1] =  54;
  cost[20,0,1] =  7;
  cost[20,1,1] =  212;
  cost[20,2,1] =  110;
  cost[20,3,1] =  380;
  cost[20,4,1] =  478;
  cost[20,5,1] =  392;
  cost[20,6,1] =  329;
  cost[20,7,1] =  296;
  cost[20,8,1] =  149;
  cost[20,9,1] =  325;
  cost[20,10,1] =  434;
  cost[20,11,1] =  401;
  cost[20,12,1] =  384;
  cost[20,13,1] =  206;
  cost[20,14,1] =  404;
  cost[20,15,1] =  3;
  cost[20,16,1] =  370;
  cost[20,17,1] =  292;
  cost[20,18,1] =  175;
  cost[20,19,1] =  58;
  cost[20,20,1] =  54;
  cost[20,21,1] =  0;
  cost[21,0,1] =  117;
  cost[21,1,1] =  428;
  cost[21,2,1] =  284;
  cost[21,3,1] =  388;
  cost[21,4,1] =  356;
  cost[21,5,1] =  265;
  cost[21,6,1] =  443;
  cost[21,7,1] =  26;
  cost[21,8,1] =  235;
  cost[21,9,1] =  255;
  cost[21,10,1] =  68;
  cost[21,11,1] =  137;
  cost[21,12,1] =  242;
  cost[21,13,1] =  219;
  cost[21,14,1] =  380;
  cost[21,15,1] =  308;
  cost[21,16,1] =  45;
  cost[21,17,1] =  46;
  cost[21,18,1] =  199;
  cost[21,19,1] =  204;
  cost[21,20,1] =  328;
  cost[21,21,1] =  410;
  cost[0,0,2] =  0;
  cost[0,1,2] =  0;
  cost[0,2,2] =  414;
  cost[0,3,2] =  307;
  cost[0,4,2] =  46;
  cost[0,5,2] =  338;
  cost[0,6,2] =  32;
  cost[0,7,2] =  434;
  cost[0,8,2] =  106;
  cost[0,9,2] =  402;
  cost[0,10,2] =  479;
  cost[0,11,2] =  178;
  cost[0,12,2] =  215;
  cost[0,13,2] =  319;
  cost[0,14,2] =  21;
  cost[0,15,2] =  23;
  cost[0,16,2] =  365;
  cost[0,17,2] =  84;
  cost[0,18,2] =  45;
  cost[0,19,2] =  298;
  cost[0,20,2] =  259;
  cost[0,21,2] =  244;
  cost[1,0,2] =  294;
  cost[1,1,2] =  414;
  cost[1,2,2] =  0;
  cost[1,3,2] =  303;
  cost[1,4,2] =  303;
  cost[1,5,2] =  464;
  cost[1,6,2] =  357;
  cost[1,7,2] =  147;
  cost[1,8,2] =  323;
  cost[1,9,2] =  284;
  cost[1,10,2] =  146;
  cost[1,11,2] =  224;
  cost[1,12,2] =  215;
  cost[1,13,2] =  453;
  cost[1,14,2] =  270;
  cost[1,15,2] =  69;
  cost[1,16,2] =  1;
  cost[1,17,2] =  220;
  cost[1,18,2] =  176;
  cost[1,19,2] =  404;
  cost[1,20,2] =  216;
  cost[1,21,2] =  354;
  cost[2,0,2] =  303;
  cost[2,1,2] =  307;
  cost[2,2,2] =  303;
  cost[2,3,2] =  0;
  cost[2,4,2] =  376;
  cost[2,5,2] =  159;
  cost[2,6,2] =  416;
  cost[2,7,2] =  460;
  cost[2,8,2] =  204;
  cost[2,9,2] =  231;
  cost[2,10,2] =  235;
  cost[2,11,2] =  449;
  cost[2,12,2] =  330;
  cost[2,13,2] =  165;
  cost[2,14,2] =  268;
  cost[2,15,2] =  149;
  cost[2,16,2] =  146;
  cost[2,17,2] =  142;
  cost[2,18,2] =  297;
  cost[2,19,2] =  469;
  cost[2,20,2] =  427;
  cost[2,21,2] =  444;
  cost[3,0,2] =  353;
  cost[3,1,2] =  46;
  cost[3,2,2] =  303;
  cost[3,3,2] =  376;
  cost[3,4,2] =  0;
  cost[3,5,2] =  413;
  cost[3,6,2] =  480;
  cost[3,7,2] =  228;
  cost[3,8,2] =  415;
  cost[3,9,2] =  217;
  cost[3,10,2] =  405;
  cost[3,11,2] =  336;
  cost[3,12,2] =  434;
  cost[3,13,2] =  276;
  cost[3,14,2] =  472;
  cost[3,15,2] =  1;
  cost[3,16,2] =  168;
  cost[3,17,2] =  147;
  cost[3,18,2] =  418;
  cost[3,19,2] =  144;
  cost[3,20,2] =  352;
  cost[3,21,2] =  165;
  cost[4,0,2] =  158;
  cost[4,1,2] =  338;
  cost[4,2,2] =  464;
  cost[4,3,2] =  159;
  cost[4,4,2] =  413;
  cost[4,5,2] =  0;
  cost[4,6,2] =  12;
  cost[4,7,2] =  62;
  cost[4,8,2] =  102;
  cost[4,9,2] =  161;
  cost[4,10,2] =  208;
  cost[4,11,2] =  245;
  cost[4,12,2] =  459;
  cost[4,13,2] =  194;
  cost[4,14,2] =  189;
  cost[4,15,2] =  419;
  cost[4,16,2] =  404;
  cost[4,17,2] =  347;
  cost[4,18,2] =  349;
  cost[4,19,2] =  401;
  cost[4,20,2] =  92;
  cost[4,21,2] =  281;
  cost[5,0,2] =  358;
  cost[5,1,2] =  32;
  cost[5,2,2] =  357;
  cost[5,3,2] =  416;
  cost[5,4,2] =  480;
  cost[5,5,2] =  12;
  cost[5,6,2] =  0;
  cost[5,7,2] =  133;
  cost[5,8,2] =  85;
  cost[5,9,2] =  289;
  cost[5,10,2] =  121;
  cost[5,11,2] =  86;
  cost[5,12,2] =  458;
  cost[5,13,2] =  269;
  cost[5,14,2] =  21;
  cost[5,15,2] =  119;
  cost[5,16,2] =  138;
  cost[5,17,2] =  186;
  cost[5,18,2] =  15;
  cost[5,19,2] =  456;
  cost[5,20,2] =  199;
  cost[5,21,2] =  78;
  cost[6,0,2] =  97;
  cost[6,1,2] =  434;
  cost[6,2,2] =  147;
  cost[6,3,2] =  460;
  cost[6,4,2] =  228;
  cost[6,5,2] =  62;
  cost[6,6,2] =  133;
  cost[6,7,2] =  0;
  cost[6,8,2] =  287;
  cost[6,9,2] =  321;
  cost[6,10,2] =  336;
  cost[6,11,2] =  482;
  cost[6,12,2] =  26;
  cost[6,13,2] =  271;
  cost[6,14,2] =  402;
  cost[6,15,2] =  374;
  cost[6,16,2] =  137;
  cost[6,17,2] =  320;
  cost[6,18,2] =  466;
  cost[6,19,2] =  418;
  cost[6,20,2] =  455;
  cost[6,21,2] =  480;
  cost[7,0,2] =  445;
  cost[7,1,2] =  106;
  cost[7,2,2] =  323;
  cost[7,3,2] =  204;
  cost[7,4,2] =  415;
  cost[7,5,2] =  102;
  cost[7,6,2] =  85;
  cost[7,7,2] =  287;
  cost[7,8,2] =  0;
  cost[7,9,2] =  286;
  cost[7,10,2] =  190;
  cost[7,11,2] =  143;
  cost[7,12,2] =  260;
  cost[7,13,2] =  459;
  cost[7,14,2] =  164;
  cost[7,15,2] =  379;
  cost[7,16,2] =  113;
  cost[7,17,2] =  351;
  cost[7,18,2] =  395;
  cost[7,19,2] =  86;
  cost[7,20,2] =  67;
  cost[7,21,2] =  473;
  cost[8,0,2] =  331;
  cost[8,1,2] =  402;
  cost[8,2,2] =  284;
  cost[8,3,2] =  231;
  cost[8,4,2] =  217;
  cost[8,5,2] =  161;
  cost[8,6,2] =  289;
  cost[8,7,2] =  321;
  cost[8,8,2] =  286;
  cost[8,9,2] =  0;
  cost[8,10,2] =  276;
  cost[8,11,2] =  483;
  cost[8,12,2] =  280;
  cost[8,13,2] =  274;
  cost[8,14,2] =  25;
  cost[8,15,2] =  68;
  cost[8,16,2] =  193;
  cost[8,17,2] =  400;
  cost[8,18,2] =  205;
  cost[8,19,2] =  30;
  cost[8,20,2] =  382;
  cost[8,21,2] =  139;
  cost[9,0,2] =  316;
  cost[9,1,2] =  479;
  cost[9,2,2] =  146;
  cost[9,3,2] =  235;
  cost[9,4,2] =  405;
  cost[9,5,2] =  208;
  cost[9,6,2] =  121;
  cost[9,7,2] =  336;
  cost[9,8,2] =  190;
  cost[9,9,2] =  276;
  cost[9,10,2] =  0;
  cost[9,11,2] =  208;
  cost[9,12,2] =  59;
  cost[9,13,2] =  181;
  cost[9,14,2] =  398;
  cost[9,15,2] =  202;
  cost[9,16,2] =  441;
  cost[9,17,2] =  373;
  cost[9,18,2] =  367;
  cost[9,19,2] =  337;
  cost[9,20,2] =  3;
  cost[9,21,2] =  235;
  cost[10,0,2] =  124;
  cost[10,1,2] =  178;
  cost[10,2,2] =  224;
  cost[10,3,2] =  449;
  cost[10,4,2] =  336;
  cost[10,5,2] =  245;
  cost[10,6,2] =  86;
  cost[10,7,2] =  482;
  cost[10,8,2] =  143;
  cost[10,9,2] =  483;
  cost[10,10,2] =  208;
  cost[10,11,2] =  0;
  cost[10,12,2] =  302;
  cost[10,13,2] =  237;
  cost[10,14,2] =  252;
  cost[10,15,2] =  246;
  cost[10,16,2] =  30;
  cost[10,17,2] =  251;
  cost[10,18,2] =  43;
  cost[10,19,2] =  305;
  cost[10,20,2] =  277;
  cost[10,21,2] =  111;
  cost[11,0,2] =  257;
  cost[11,1,2] =  215;
  cost[11,2,2] =  215;
  cost[11,3,2] =  330;
  cost[11,4,2] =  434;
  cost[11,5,2] =  459;
  cost[11,6,2] =  458;
  cost[11,7,2] =  26;
  cost[11,8,2] =  260;
  cost[11,9,2] =  280;
  cost[11,10,2] =  59;
  cost[11,11,2] =  302;
  cost[11,12,2] =  0;
  cost[11,13,2] =  316;
  cost[11,14,2] =  45;
  cost[11,15,2] =  92;
  cost[11,16,2] =  456;
  cost[11,17,2] =  47;
  cost[11,18,2] =  471;
  cost[11,19,2] =  180;
  cost[11,20,2] =  106;
  cost[11,21,2] =  169;
  cost[12,0,2] =  42;
  cost[12,1,2] =  319;
  cost[12,2,2] =  453;
  cost[12,3,2] =  165;
  cost[12,4,2] =  276;
  cost[12,5,2] =  194;
  cost[12,6,2] =  269;
  cost[12,7,2] =  271;
  cost[12,8,2] =  459;
  cost[12,9,2] =  274;
  cost[12,10,2] =  181;
  cost[12,11,2] =  237;
  cost[12,12,2] =  316;
  cost[12,13,2] =  0;
  cost[12,14,2] =  127;
  cost[12,15,2] =  468;
  cost[12,16,2] =  193;
  cost[12,17,2] =  464;
  cost[12,18,2] =  472;
  cost[12,19,2] =  429;
  cost[12,20,2] =  228;
  cost[12,21,2] =  78;
  cost[13,0,2] =  126;
  cost[13,1,2] =  21;
  cost[13,2,2] =  270;
  cost[13,3,2] =  268;
  cost[13,4,2] =  472;
  cost[13,5,2] =  189;
  cost[13,6,2] =  21;
  cost[13,7,2] =  402;
  cost[13,8,2] =  164;
  cost[13,9,2] =  25;
  cost[13,10,2] =  398;
  cost[13,11,2] =  252;
  cost[13,12,2] =  45;
  cost[13,13,2] =  127;
  cost[13,14,2] =  0;
  cost[13,15,2] =  330;
  cost[13,16,2] =  10;
  cost[13,17,2] =  13;
  cost[13,18,2] =  98;
  cost[13,19,2] =  54;
  cost[13,20,2] =  318;
  cost[13,21,2] =  375;
  cost[14,0,2] =  424;
  cost[14,1,2] =  23;
  cost[14,2,2] =  69;
  cost[14,3,2] =  149;
  cost[14,4,2] =  1;
  cost[14,5,2] =  419;
  cost[14,6,2] =  119;
  cost[14,7,2] =  374;
  cost[14,8,2] =  379;
  cost[14,9,2] =  68;
  cost[14,10,2] =  202;
  cost[14,11,2] =  246;
  cost[14,12,2] =  92;
  cost[14,13,2] =  468;
  cost[14,14,2] =  330;
  cost[14,15,2] =  0;
  cost[14,16,2] =  85;
  cost[14,17,2] =  482;
  cost[14,18,2] =  379;
  cost[14,19,2] =  177;
  cost[14,20,2] =  455;
  cost[14,21,2] =  426;
  cost[15,0,2] =  332;
  cost[15,1,2] =  365;
  cost[15,2,2] =  1;
  cost[15,3,2] =  146;
  cost[15,4,2] =  168;
  cost[15,5,2] =  404;
  cost[15,6,2] =  138;
  cost[15,7,2] =  137;
  cost[15,8,2] =  113;
  cost[15,9,2] =  193;
  cost[15,10,2] =  441;
  cost[15,11,2] =  30;
  cost[15,12,2] =  456;
  cost[15,13,2] =  193;
  cost[15,14,2] =  10;
  cost[15,15,2] =  85;
  cost[15,16,2] =  0;
  cost[15,17,2] =  49;
  cost[15,18,2] =  334;
  cost[15,19,2] =  247;
  cost[15,20,2] =  358;
  cost[15,21,2] =  461;
  cost[16,0,2] =  45;
  cost[16,1,2] =  84;
  cost[16,2,2] =  220;
  cost[16,3,2] =  142;
  cost[16,4,2] =  147;
  cost[16,5,2] =  347;
  cost[16,6,2] =  186;
  cost[16,7,2] =  320;
  cost[16,8,2] =  351;
  cost[16,9,2] =  400;
  cost[16,10,2] =  373;
  cost[16,11,2] =  251;
  cost[16,12,2] =  47;
  cost[16,13,2] =  464;
  cost[16,14,2] =  13;
  cost[16,15,2] =  482;
  cost[16,16,2] =  49;
  cost[16,17,2] =  0;
  cost[16,18,2] =  441;
  cost[16,19,2] =  220;
  cost[16,20,2] =  12;
  cost[16,21,2] =  186;
  cost[17,0,2] =  53;
  cost[17,1,2] =  45;
  cost[17,2,2] =  176;
  cost[17,3,2] =  297;
  cost[17,4,2] =  418;
  cost[17,5,2] =  349;
  cost[17,6,2] =  15;
  cost[17,7,2] =  466;
  cost[17,8,2] =  395;
  cost[17,9,2] =  205;
  cost[17,10,2] =  367;
  cost[17,11,2] =  43;
  cost[17,12,2] =  471;
  cost[17,13,2] =  472;
  cost[17,14,2] =  98;
  cost[17,15,2] =  379;
  cost[17,16,2] =  334;
  cost[17,17,2] =  441;
  cost[17,18,2] =  0;
  cost[17,19,2] =  168;
  cost[17,20,2] =  145;
  cost[17,21,2] =  271;
  cost[18,0,2] =  175;
  cost[18,1,2] =  298;
  cost[18,2,2] =  404;
  cost[18,3,2] =  469;
  cost[18,4,2] =  144;
  cost[18,5,2] =  401;
  cost[18,6,2] =  456;
  cost[18,7,2] =  418;
  cost[18,8,2] =  86;
  cost[18,9,2] =  30;
  cost[18,10,2] =  337;
  cost[18,11,2] =  305;
  cost[18,12,2] =  180;
  cost[18,13,2] =  429;
  cost[18,14,2] =  54;
  cost[18,15,2] =  177;
  cost[18,16,2] =  247;
  cost[18,17,2] =  220;
  cost[18,18,2] =  168;
  cost[18,19,2] =  0;
  cost[18,20,2] =  325;
  cost[18,21,2] =  16;
  cost[19,0,2] =  279;
  cost[19,1,2] =  259;
  cost[19,2,2] =  216;
  cost[19,3,2] =  427;
  cost[19,4,2] =  352;
  cost[19,5,2] =  92;
  cost[19,6,2] =  199;
  cost[19,7,2] =  455;
  cost[19,8,2] =  67;
  cost[19,9,2] =  382;
  cost[19,10,2] =  3;
  cost[19,11,2] =  277;
  cost[19,12,2] =  106;
  cost[19,13,2] =  228;
  cost[19,14,2] =  318;
  cost[19,15,2] =  455;
  cost[19,16,2] =  358;
  cost[19,17,2] =  12;
  cost[19,18,2] =  145;
  cost[19,19,2] =  325;
  cost[19,20,2] =  0;
  cost[19,21,2] =  350;
  cost[20,0,2] =  287;
  cost[20,1,2] =  244;
  cost[20,2,2] =  354;
  cost[20,3,2] =  444;
  cost[20,4,2] =  165;
  cost[20,5,2] =  281;
  cost[20,6,2] =  78;
  cost[20,7,2] =  480;
  cost[20,8,2] =  473;
  cost[20,9,2] =  139;
  cost[20,10,2] =  235;
  cost[20,11,2] =  111;
  cost[20,12,2] =  169;
  cost[20,13,2] =  78;
  cost[20,14,2] =  375;
  cost[20,15,2] =  426;
  cost[20,16,2] =  461;
  cost[20,17,2] =  186;
  cost[20,18,2] =  271;
  cost[20,19,2] =  16;
  cost[20,20,2] =  350;
  cost[20,21,2] =  0;
  cost[21,0,2] =  322;
  cost[21,1,2] =  98;
  cost[21,2,2] =  135;
  cost[21,3,2] =  210;
  cost[21,4,2] =  380;
  cost[21,5,2] =  135;
  cost[21,6,2] =  75;
  cost[21,7,2] =  68;
  cost[21,8,2] =  162;
  cost[21,9,2] =  2;
  cost[21,10,2] =  248;
  cost[21,11,2] =  15;
  cost[21,12,2] =  94;
  cost[21,13,2] =  247;
  cost[21,14,2] =  165;
  cost[21,15,2] =  165;
  cost[21,16,2] =  231;
  cost[21,17,2] =  298;
  cost[21,18,2] =  181;
  cost[21,19,2] =  136;
  cost[21,20,2] =  221;
  cost[21,21,2] =  245;
  cost[0,0,3] =  0;
  cost[0,1,3] =  0;
  cost[0,2,3] =  188;
  cost[0,3,3] =  80;
  cost[0,4,3] =  129;
  cost[0,5,3] =  237;
  cost[0,6,3] =  414;
  cost[0,7,3] =  376;
  cost[0,8,3] =  111;
  cost[0,9,3] =  391;
  cost[0,10,3] =  123;
  cost[0,11,3] =  179;
  cost[0,12,3] =  349;
  cost[0,13,3] =  343;
  cost[0,14,3] =  192;
  cost[0,15,3] =  51;
  cost[0,16,3] =  158;
  cost[0,17,3] =  452;
  cost[0,18,3] =  219;
  cost[0,19,3] =  304;
  cost[0,20,3] =  240;
  cost[0,21,3] =  401;
  cost[1,0,3] =  264;
  cost[1,1,3] =  188;
  cost[1,2,3] =  0;
  cost[1,3,3] =  418;
  cost[1,4,3] =  200;
  cost[1,5,3] =  89;
  cost[1,6,3] =  284;
  cost[1,7,3] =  422;
  cost[1,8,3] =  94;
  cost[1,9,3] =  46;
  cost[1,10,3] =  336;
  cost[1,11,3] =  71;
  cost[1,12,3] =  234;
  cost[1,13,3] =  416;
  cost[1,14,3] =  200;
  cost[1,15,3] =  471;
  cost[1,16,3] =  347;
  cost[1,17,3] =  92;
  cost[1,18,3] =  99;
  cost[1,19,3] =  254;
  cost[1,20,3] =  216;
  cost[1,21,3] =  278;
  cost[2,0,3] =  357;
  cost[2,1,3] =  80;
  cost[2,2,3] =  418;
  cost[2,3,3] =  0;
  cost[2,4,3] =  470;
  cost[2,5,3] =  171;
  cost[2,6,3] =  235;
  cost[2,7,3] =  439;
  cost[2,8,3] =  391;
  cost[2,9,3] =  55;
  cost[2,10,3] =  196;
  cost[2,11,3] =  309;
  cost[2,12,3] =  119;
  cost[2,13,3] =  278;
  cost[2,14,3] =  243;
  cost[2,15,3] =  320;
  cost[2,16,3] =  367;
  cost[2,17,3] =  44;
  cost[2,18,3] =  258;
  cost[2,19,3] =  461;
  cost[2,20,3] =  90;
  cost[2,21,3] =  111;
  cost[3,0,3] =  451;
  cost[3,1,3] =  129;
  cost[3,2,3] =  200;
  cost[3,3,3] =  470;
  cost[3,4,3] =  0;
  cost[3,5,3] =  44;
  cost[3,6,3] =  250;
  cost[3,7,3] =  311;
  cost[3,8,3] =  391;
  cost[3,9,3] =  342;
  cost[3,10,3] =  410;
  cost[3,11,3] =  162;
  cost[3,12,3] =  75;
  cost[3,13,3] =  205;
  cost[3,14,3] =  282;
  cost[3,15,3] =  152;
  cost[3,16,3] =  192;
  cost[3,17,3] =  453;
  cost[3,18,3] =  387;
  cost[3,19,3] =  148;
  cost[3,20,3] =  361;
  cost[3,21,3] =  443;
  cost[4,0,3] =  112;
  cost[4,1,3] =  237;
  cost[4,2,3] =  89;
  cost[4,3,3] =  171;
  cost[4,4,3] =  44;
  cost[4,5,3] =  0;
  cost[4,6,3] =  79;
  cost[4,7,3] =  138;
  cost[4,8,3] =  429;
  cost[4,9,3] =  399;
  cost[4,10,3] =  21;
  cost[4,11,3] =  473;
  cost[4,12,3] =  174;
  cost[4,13,3] =  483;
  cost[4,14,3] =  80;
  cost[4,15,3] =  285;
  cost[4,16,3] =  49;
  cost[4,17,3] =  404;
  cost[4,18,3] =  330;
  cost[4,19,3] =  299;
  cost[4,20,3] =  232;
  cost[4,21,3] =  238;
  cost[5,0,3] =  448;
  cost[5,1,3] =  414;
  cost[5,2,3] =  284;
  cost[5,3,3] =  235;
  cost[5,4,3] =  250;
  cost[5,5,3] =  79;
  cost[5,6,3] =  0;
  cost[5,7,3] =  400;
  cost[5,8,3] =  233;
  cost[5,9,3] =  364;
  cost[5,10,3] =  199;
  cost[5,11,3] =  386;
  cost[5,12,3] =  72;
  cost[5,13,3] =  169;
  cost[5,14,3] =  289;
  cost[5,15,3] =  220;
  cost[5,16,3] =  46;
  cost[5,17,3] =  249;
  cost[5,18,3] =  81;
  cost[5,19,3] =  233;
  cost[5,20,3] =  328;
  cost[5,21,3] =  219;
  cost[6,0,3] =  266;
  cost[6,1,3] =  376;
  cost[6,2,3] =  422;
  cost[6,3,3] =  439;
  cost[6,4,3] =  311;
  cost[6,5,3] =  138;
  cost[6,6,3] =  400;
  cost[6,7,3] =  0;
  cost[6,8,3] =  241;
  cost[6,9,3] =  168;
  cost[6,10,3] =  418;
  cost[6,11,3] =  241;
  cost[6,12,3] =  248;
  cost[6,13,3] =  220;
  cost[6,14,3] =  290;
  cost[6,15,3] =  169;
  cost[6,16,3] =  67;
  cost[6,17,3] =  106;
  cost[6,18,3] =  401;
  cost[6,19,3] =  305;
  cost[6,20,3] =  264;
  cost[6,21,3] =  76;
  cost[7,0,3] =  451;
  cost[7,1,3] =  111;
  cost[7,2,3] =  94;
  cost[7,3,3] =  391;
  cost[7,4,3] =  391;
  cost[7,5,3] =  429;
  cost[7,6,3] =  233;
  cost[7,7,3] =  241;
  cost[7,8,3] =  0;
  cost[7,9,3] =  441;
  cost[7,10,3] =  421;
  cost[7,11,3] =  400;
  cost[7,12,3] =  30;
  cost[7,13,3] =  107;
  cost[7,14,3] =  206;
  cost[7,15,3] =  251;
  cost[7,16,3] =  153;
  cost[7,17,3] =  456;
  cost[7,18,3] =  332;
  cost[7,19,3] =  386;
  cost[7,20,3] =  300;
  cost[7,21,3] =  68;
  cost[8,0,3] =  239;
  cost[8,1,3] =  391;
  cost[8,2,3] =  46;
  cost[8,3,3] =  55;
  cost[8,4,3] =  342;
  cost[8,5,3] =  399;
  cost[8,6,3] =  364;
  cost[8,7,3] =  168;
  cost[8,8,3] =  441;
  cost[8,9,3] =  0;
  cost[8,10,3] =  309;
  cost[8,11,3] =  250;
  cost[8,12,3] =  479;
  cost[8,13,3] =  67;
  cost[8,14,3] =  15;
  cost[8,15,3] =  216;
  cost[8,16,3] =  357;
  cost[8,17,3] =  184;
  cost[8,18,3] =  283;
  cost[8,19,3] =  464;
  cost[8,20,3] =  102;
  cost[8,21,3] =  104;
  cost[9,0,3] =  267;
  cost[9,1,3] =  123;
  cost[9,2,3] =  336;
  cost[9,3,3] =  196;
  cost[9,4,3] =  410;
  cost[9,5,3] =  21;
  cost[9,6,3] =  199;
  cost[9,7,3] =  418;
  cost[9,8,3] =  421;
  cost[9,9,3] =  309;
  cost[9,10,3] =  0;
  cost[9,11,3] =  326;
  cost[9,12,3] =  259;
  cost[9,13,3] =  137;
  cost[9,14,3] =  264;
  cost[9,15,3] =  176;
  cost[9,16,3] =  167;
  cost[9,17,3] =  371;
  cost[9,18,3] =  382;
  cost[9,19,3] =  418;
  cost[9,20,3] =  41;
  cost[9,21,3] =  354;
  cost[10,0,3] =  454;
  cost[10,1,3] =  179;
  cost[10,2,3] =  71;
  cost[10,3,3] =  309;
  cost[10,4,3] =  162;
  cost[10,5,3] =  473;
  cost[10,6,3] =  386;
  cost[10,7,3] =  241;
  cost[10,8,3] =  400;
  cost[10,9,3] =  250;
  cost[10,10,3] =  326;
  cost[10,11,3] =  0;
  cost[10,12,3] =  171;
  cost[10,13,3] =  335;
  cost[10,14,3] =  26;
  cost[10,15,3] =  232;
  cost[10,16,3] =  160;
  cost[10,17,3] =  276;
  cost[10,18,3] =  227;
  cost[10,19,3] =  227;
  cost[10,20,3] =  292;
  cost[10,21,3] =  443;
  cost[11,0,3] =  387;
  cost[11,1,3] =  349;
  cost[11,2,3] =  234;
  cost[11,3,3] =  119;
  cost[11,4,3] =  75;
  cost[11,5,3] =  174;
  cost[11,6,3] =  72;
  cost[11,7,3] =  248;
  cost[11,8,3] =  30;
  cost[11,9,3] =  479;
  cost[11,10,3] =  259;
  cost[11,11,3] =  171;
  cost[11,12,3] =  0;
  cost[11,13,3] =  243;
  cost[11,14,3] =  81;
  cost[11,15,3] =  95;
  cost[11,16,3] =  347;
  cost[11,17,3] =  326;
  cost[11,18,3] =  275;
  cost[11,19,3] =  190;
  cost[11,20,3] =  101;
  cost[11,21,3] =  412;
  cost[12,0,3] =  394;
  cost[12,1,3] =  343;
  cost[12,2,3] =  416;
  cost[12,3,3] =  278;
  cost[12,4,3] =  205;
  cost[12,5,3] =  483;
  cost[12,6,3] =  169;
  cost[12,7,3] =  220;
  cost[12,8,3] =  107;
  cost[12,9,3] =  67;
  cost[12,10,3] =  137;
  cost[12,11,3] =  335;
  cost[12,12,3] =  243;
  cost[12,13,3] =  0;
  cost[12,14,3] =  95;
  cost[12,15,3] =  341;
  cost[12,16,3] =  176;
  cost[12,17,3] =  30;
  cost[12,18,3] =  383;
  cost[12,19,3] =  47;
  cost[12,20,3] =  297;
  cost[12,21,3] =  327;
  cost[13,0,3] =  287;
  cost[13,1,3] =  192;
  cost[13,2,3] =  200;
  cost[13,3,3] =  243;
  cost[13,4,3] =  282;
  cost[13,5,3] =  80;
  cost[13,6,3] =  289;
  cost[13,7,3] =  290;
  cost[13,8,3] =  206;
  cost[13,9,3] =  15;
  cost[13,10,3] =  264;
  cost[13,11,3] =  26;
  cost[13,12,3] =  81;
  cost[13,13,3] =  95;
  cost[13,14,3] =  0;
  cost[13,15,3] =  353;
  cost[13,16,3] =  451;
  cost[13,17,3] =  309;
  cost[13,18,3] =  146;
  cost[13,19,3] =  195;
  cost[13,20,3] =  53;
  cost[13,21,3] =  438;
  cost[14,0,3] =  318;
  cost[14,1,3] =  51;
  cost[14,2,3] =  471;
  cost[14,3,3] =  320;
  cost[14,4,3] =  152;
  cost[14,5,3] =  285;
  cost[14,6,3] =  220;
  cost[14,7,3] =  169;
  cost[14,8,3] =  251;
  cost[14,9,3] =  216;
  cost[14,10,3] =  176;
  cost[14,11,3] =  232;
  cost[14,12,3] =  95;
  cost[14,13,3] =  341;
  cost[14,14,3] =  353;
  cost[14,15,3] =  0;
  cost[14,16,3] =  431;
  cost[14,17,3] =  398;
  cost[14,18,3] =  237;
  cost[14,19,3] =  43;
  cost[14,20,3] =  262;
  cost[14,21,3] =  79;
  cost[15,0,3] =  481;
  cost[15,1,3] =  158;
  cost[15,2,3] =  347;
  cost[15,3,3] =  367;
  cost[15,4,3] =  192;
  cost[15,5,3] =  49;
  cost[15,6,3] =  46;
  cost[15,7,3] =  67;
  cost[15,8,3] =  153;
  cost[15,9,3] =  357;
  cost[15,10,3] =  167;
  cost[15,11,3] =  160;
  cost[15,12,3] =  347;
  cost[15,13,3] =  176;
  cost[15,14,3] =  451;
  cost[15,15,3] =  431;
  cost[15,16,3] =  0;
  cost[15,17,3] =  181;
  cost[15,18,3] =  247;
  cost[15,19,3] =  423;
  cost[15,20,3] =  459;
  cost[15,21,3] =  343;
  cost[16,0,3] =  452;
  cost[16,1,3] =  452;
  cost[16,2,3] =  92;
  cost[16,3,3] =  44;
  cost[16,4,3] =  453;
  cost[16,5,3] =  404;
  cost[16,6,3] =  249;
  cost[16,7,3] =  106;
  cost[16,8,3] =  456;
  cost[16,9,3] =  184;
  cost[16,10,3] =  371;
  cost[16,11,3] =  276;
  cost[16,12,3] =  326;
  cost[16,13,3] =  30;
  cost[16,14,3] =  309;
  cost[16,15,3] =  398;
  cost[16,16,3] =  181;
  cost[16,17,3] =  0;
  cost[16,18,3] =  373;
  cost[16,19,3] =  180;
  cost[16,20,3] =  200;
  cost[16,21,3] =  187;
  cost[17,0,3] =  157;
  cost[17,1,3] =  219;
  cost[17,2,3] =  99;
  cost[17,3,3] =  258;
  cost[17,4,3] =  387;
  cost[17,5,3] =  330;
  cost[17,6,3] =  81;
  cost[17,7,3] =  401;
  cost[17,8,3] =  332;
  cost[17,9,3] =  283;
  cost[17,10,3] =  382;
  cost[17,11,3] =  227;
  cost[17,12,3] =  275;
  cost[17,13,3] =  383;
  cost[17,14,3] =  146;
  cost[17,15,3] =  237;
  cost[17,16,3] =  247;
  cost[17,17,3] =  373;
  cost[17,18,3] =  0;
  cost[17,19,3] =  336;
  cost[17,20,3] =  377;
  cost[17,21,3] =  387;
  cost[18,0,3] =  423;
  cost[18,1,3] =  304;
  cost[18,2,3] =  254;
  cost[18,3,3] =  461;
  cost[18,4,3] =  148;
  cost[18,5,3] =  299;
  cost[18,6,3] =  233;
  cost[18,7,3] =  305;
  cost[18,8,3] =  386;
  cost[18,9,3] =  464;
  cost[18,10,3] =  418;
  cost[18,11,3] =  227;
  cost[18,12,3] =  190;
  cost[18,13,3] =  47;
  cost[18,14,3] =  195;
  cost[18,15,3] =  43;
  cost[18,16,3] =  423;
  cost[18,17,3] =  180;
  cost[18,18,3] =  336;
  cost[18,19,3] =  0;
  cost[18,20,3] =  98;
  cost[18,21,3] =  214;
  cost[19,0,3] =  285;
  cost[19,1,3] =  240;
  cost[19,2,3] =  216;
  cost[19,3,3] =  90;
  cost[19,4,3] =  361;
  cost[19,5,3] =  232;
  cost[19,6,3] =  328;
  cost[19,7,3] =  264;
  cost[19,8,3] =  300;
  cost[19,9,3] =  102;
  cost[19,10,3] =  41;
  cost[19,11,3] =  292;
  cost[19,12,3] =  101;
  cost[19,13,3] =  297;
  cost[19,14,3] =  53;
  cost[19,15,3] =  262;
  cost[19,16,3] =  459;
  cost[19,17,3] =  200;
  cost[19,18,3] =  377;
  cost[19,19,3] =  98;
  cost[19,20,3] =  0;
  cost[19,21,3] =  369;
  cost[20,0,3] =  308;
  cost[20,1,3] =  401;
  cost[20,2,3] =  278;
  cost[20,3,3] =  111;
  cost[20,4,3] =  443;
  cost[20,5,3] =  238;
  cost[20,6,3] =  219;
  cost[20,7,3] =  76;
  cost[20,8,3] =  68;
  cost[20,9,3] =  104;
  cost[20,10,3] =  354;
  cost[20,11,3] =  443;
  cost[20,12,3] =  412;
  cost[20,13,3] =  327;
  cost[20,14,3] =  438;
  cost[20,15,3] =  79;
  cost[20,16,3] =  343;
  cost[20,17,3] =  187;
  cost[20,18,3] =  387;
  cost[20,19,3] =  214;
  cost[20,20,3] =  369;
  cost[20,21,3] =  0;
  cost[21,0,3] =  367;
  cost[21,1,3] =  64;
  cost[21,2,3] =  120;
  cost[21,3,3] =  49;
  cost[21,4,3] =  344;
  cost[21,5,3] =  158;
  cost[21,6,3] =  178;
  cost[21,7,3] =  222;
  cost[21,8,3] =  81;
  cost[21,9,3] =  244;
  cost[21,10,3] =  266;
  cost[21,11,3] =  101;
  cost[21,12,3] =  454;
  cost[21,13,3] =  219;
  cost[21,14,3] =  155;
  cost[21,15,3] =  318;
  cost[21,16,3] =  281;
  cost[21,17,3] =  24;
  cost[21,18,3] =  161;
  cost[21,19,3] =  479;
  cost[21,20,3] =  427;
  cost[21,21,3] =  122;
  cost[0,0,4] =  0;
  cost[0,1,4] =  0;
  cost[0,2,4] =  202;
  cost[0,3,4] =  305;
  cost[0,4,4] =  399;
  cost[0,5,4] =  384;
  cost[0,6,4] =  68;
  cost[0,7,4] =  339;
  cost[0,8,4] =  359;
  cost[0,9,4] =  411;
  cost[0,10,4] =  136;
  cost[0,11,4] =  28;
  cost[0,12,4] =  301;
  cost[0,13,4] =  316;
  cost[0,14,4] =  229;
  cost[0,15,4] =  4;
  cost[0,16,4] =  340;
  cost[0,17,4] =  164;
  cost[0,18,4] =  340;
  cost[0,19,4] =  234;
  cost[0,20,4] =  68;
  cost[0,21,4] =  18;
  cost[1,0,4] =  35;
  cost[1,1,4] =  202;
  cost[1,2,4] =  0;
  cost[1,3,4] =  233;
  cost[1,4,4] =  270;
  cost[1,5,4] =  421;
  cost[1,6,4] =  119;
  cost[1,7,4] =  213;
  cost[1,8,4] =  106;
  cost[1,9,4] =  242;
  cost[1,10,4] =  200;
  cost[1,11,4] =  54;
  cost[1,12,4] =  444;
  cost[1,13,4] =  21;
  cost[1,14,4] =  454;
  cost[1,15,4] =  344;
  cost[1,16,4] =  89;
  cost[1,17,4] =  309;
  cost[1,18,4] =  220;
  cost[1,19,4] =  17;
  cost[1,20,4] =  445;
  cost[1,21,4] =  249;
  cost[2,0,4] =  248;
  cost[2,1,4] =  305;
  cost[2,2,4] =  233;
  cost[2,3,4] =  0;
  cost[2,4,4] =  478;
  cost[2,5,4] =  323;
  cost[2,6,4] =  134;
  cost[2,7,4] =  159;
  cost[2,8,4] =  180;
  cost[2,9,4] =  369;
  cost[2,10,4] =  227;
  cost[2,11,4] =  198;
  cost[2,12,4] =  160;
  cost[2,13,4] =  394;
  cost[2,14,4] =  432;
  cost[2,15,4] =  431;
  cost[2,16,4] =  332;
  cost[2,17,4] =  67;
  cost[2,18,4] =  161;
  cost[2,19,4] =  439;
  cost[2,20,4] =  309;
  cost[2,21,4] =  361;
  cost[3,0,4] =  430;
  cost[3,1,4] =  399;
  cost[3,2,4] =  270;
  cost[3,3,4] =  478;
  cost[3,4,4] =  0;
  cost[3,5,4] =  383;
  cost[3,6,4] =  463;
  cost[3,7,4] =  130;
  cost[3,8,4] =  472;
  cost[3,9,4] =  288;
  cost[3,10,4] =  351;
  cost[3,11,4] =  6;
  cost[3,12,4] =  249;
  cost[3,13,4] =  116;
  cost[3,14,4] =  325;
  cost[3,15,4] =  43;
  cost[3,16,4] =  111;
  cost[3,17,4] =  164;
  cost[3,18,4] =  178;
  cost[3,19,4] =  270;
  cost[3,20,4] =  344;
  cost[3,21,4] =  63;
  cost[4,0,4] =  295;
  cost[4,1,4] =  384;
  cost[4,2,4] =  421;
  cost[4,3,4] =  323;
  cost[4,4,4] =  383;
  cost[4,5,4] =  0;
  cost[4,6,4] =  224;
  cost[4,7,4] =  409;
  cost[4,8,4] =  7;
  cost[4,9,4] =  171;
  cost[4,10,4] =  257;
  cost[4,11,4] =  75;
  cost[4,12,4] =  332;
  cost[4,13,4] =  212;
  cost[4,14,4] =  384;
  cost[4,15,4] =  210;
  cost[4,16,4] =  222;
  cost[4,17,4] =  170;
  cost[4,18,4] =  109;
  cost[4,19,4] =  201;
  cost[4,20,4] =  301;
  cost[4,21,4] =  98;
  cost[5,0,4] =  257;
  cost[5,1,4] =  68;
  cost[5,2,4] =  119;
  cost[5,3,4] =  134;
  cost[5,4,4] =  463;
  cost[5,5,4] =  224;
  cost[5,6,4] =  0;
  cost[5,7,4] =  104;
  cost[5,8,4] =  255;
  cost[5,9,4] =  285;
  cost[5,10,4] =  429;
  cost[5,11,4] =  299;
  cost[5,12,4] =  396;
  cost[5,13,4] =  110;
  cost[5,14,4] =  477;
  cost[5,15,4] =  183;
  cost[5,16,4] =  454;
  cost[5,17,4] =  57;
  cost[5,18,4] =  197;
  cost[5,19,4] =  30;
  cost[5,20,4] =  281;
  cost[5,21,4] =  122;
  cost[6,0,4] =  397;
  cost[6,1,4] =  339;
  cost[6,2,4] =  213;
  cost[6,3,4] =  159;
  cost[6,4,4] =  130;
  cost[6,5,4] =  409;
  cost[6,6,4] =  104;
  cost[6,7,4] =  0;
  cost[6,8,4] =  380;
  cost[6,9,4] =  113;
  cost[6,10,4] =  301;
  cost[6,11,4] =  108;
  cost[6,12,4] =  13;
  cost[6,13,4] =  28;
  cost[6,14,4] =  330;
  cost[6,15,4] =  183;
  cost[6,16,4] =  137;
  cost[6,17,4] =  48;
  cost[6,18,4] =  0;
  cost[6,19,4] =  235;
  cost[6,20,4] =  54;
  cost[6,21,4] =  169;
  cost[7,0,4] =  464;
  cost[7,1,4] =  359;
  cost[7,2,4] =  106;
  cost[7,3,4] =  180;
  cost[7,4,4] =  472;
  cost[7,5,4] =  7;
  cost[7,6,4] =  255;
  cost[7,7,4] =  380;
  cost[7,8,4] =  0;
  cost[7,9,4] =  454;
  cost[7,10,4] =  285;
  cost[7,11,4] =  125;
  cost[7,12,4] =  367;
  cost[7,13,4] =  395;
  cost[7,14,4] =  118;
  cost[7,15,4] =  66;
  cost[7,16,4] =  366;
  cost[7,17,4] =  176;
  cost[7,18,4] =  264;
  cost[7,19,4] =  397;
  cost[7,20,4] =  457;
  cost[7,21,4] =  386;
  cost[8,0,4] =  356;
  cost[8,1,4] =  411;
  cost[8,2,4] =  242;
  cost[8,3,4] =  369;
  cost[8,4,4] =  288;
  cost[8,5,4] =  171;
  cost[8,6,4] =  285;
  cost[8,7,4] =  113;
  cost[8,8,4] =  454;
  cost[8,9,4] =  0;
  cost[8,10,4] =  282;
  cost[8,11,4] =  64;
  cost[8,12,4] =  244;
  cost[8,13,4] =  391;
  cost[8,14,4] =  77;
  cost[8,15,4] =  272;
  cost[8,16,4] =  238;
  cost[8,17,4] =  261;
  cost[8,18,4] =  409;
  cost[8,19,4] =  286;
  cost[8,20,4] =  262;
  cost[8,21,4] =  161;
  cost[9,0,4] =  166;
  cost[9,1,4] =  136;
  cost[9,2,4] =  200;
  cost[9,3,4] =  227;
  cost[9,4,4] =  351;
  cost[9,5,4] =  257;
  cost[9,6,4] =  429;
  cost[9,7,4] =  301;
  cost[9,8,4] =  285;
  cost[9,9,4] =  282;
  cost[9,10,4] =  0;
  cost[9,11,4] =  17;
  cost[9,12,4] =  166;
  cost[9,13,4] =  402;
  cost[9,14,4] =  303;
  cost[9,15,4] =  291;
  cost[9,16,4] =  285;
  cost[9,17,4] =  214;
  cost[9,18,4] =  410;
  cost[9,19,4] =  352;
  cost[9,20,4] =  97;
  cost[9,21,4] =  102;
  cost[10,0,4] =  174;
  cost[10,1,4] =  28;
  cost[10,2,4] =  54;
  cost[10,3,4] =  198;
  cost[10,4,4] =  6;
  cost[10,5,4] =  75;
  cost[10,6,4] =  299;
  cost[10,7,4] =  108;
  cost[10,8,4] =  125;
  cost[10,9,4] =  64;
  cost[10,10,4] =  17;
  cost[10,11,4] =  0;
  cost[10,12,4] =  75;
  cost[10,13,4] =  35;
  cost[10,14,4] =  445;
  cost[10,15,4] =  18;
  cost[10,16,4] =  318;
  cost[10,17,4] =  26;
  cost[10,18,4] =  262;
  cost[10,19,4] =  225;
  cost[10,20,4] =  103;
  cost[10,21,4] =  51;
  cost[11,0,4] =  21;
  cost[11,1,4] =  301;
  cost[11,2,4] =  444;
  cost[11,3,4] =  160;
  cost[11,4,4] =  249;
  cost[11,5,4] =  332;
  cost[11,6,4] =  396;
  cost[11,7,4] =  13;
  cost[11,8,4] =  367;
  cost[11,9,4] =  244;
  cost[11,10,4] =  166;
  cost[11,11,4] =  75;
  cost[11,12,4] =  0;
  cost[11,13,4] =  461;
  cost[11,14,4] =  266;
  cost[11,15,4] =  143;
  cost[11,16,4] =  138;
  cost[11,17,4] =  123;
  cost[11,18,4] =  91;
  cost[11,19,4] =  155;
  cost[11,20,4] =  289;
  cost[11,21,4] =  9;
  cost[12,0,4] =  11;
  cost[12,1,4] =  316;
  cost[12,2,4] =  21;
  cost[12,3,4] =  394;
  cost[12,4,4] =  116;
  cost[12,5,4] =  212;
  cost[12,6,4] =  110;
  cost[12,7,4] =  28;
  cost[12,8,4] =  395;
  cost[12,9,4] =  391;
  cost[12,10,4] =  402;
  cost[12,11,4] =  35;
  cost[12,12,4] =  461;
  cost[12,13,4] =  0;
  cost[12,14,4] =  295;
  cost[12,15,4] =  189;
  cost[12,16,4] =  23;
  cost[12,17,4] =  163;
  cost[12,18,4] =  287;
  cost[12,19,4] =  125;
  cost[12,20,4] =  296;
  cost[12,21,4] =  298;
  cost[13,0,4] =  2;
  cost[13,1,4] =  229;
  cost[13,2,4] =  454;
  cost[13,3,4] =  432;
  cost[13,4,4] =  325;
  cost[13,5,4] =  384;
  cost[13,6,4] =  477;
  cost[13,7,4] =  330;
  cost[13,8,4] =  118;
  cost[13,9,4] =  77;
  cost[13,10,4] =  303;
  cost[13,11,4] =  445;
  cost[13,12,4] =  266;
  cost[13,13,4] =  295;
  cost[13,14,4] =  0;
  cost[13,15,4] =  259;
  cost[13,16,4] =  219;
  cost[13,17,4] =  166;
  cost[13,18,4] =  286;
  cost[13,19,4] =  482;
  cost[13,20,4] =  391;
  cost[13,21,4] =  389;
  cost[14,0,4] =  235;
  cost[14,1,4] =  4;
  cost[14,2,4] =  344;
  cost[14,3,4] =  431;
  cost[14,4,4] =  43;
  cost[14,5,4] =  210;
  cost[14,6,4] =  183;
  cost[14,7,4] =  183;
  cost[14,8,4] =  66;
  cost[14,9,4] =  272;
  cost[14,10,4] =  291;
  cost[14,11,4] =  18;
  cost[14,12,4] =  143;
  cost[14,13,4] =  189;
  cost[14,14,4] =  259;
  cost[14,15,4] =  0;
  cost[14,16,4] =  271;
  cost[14,17,4] =  26;
  cost[14,18,4] =  154;
  cost[14,19,4] =  415;
  cost[14,20,4] =  165;
  cost[14,21,4] =  277;
  cost[15,0,4] =  141;
  cost[15,1,4] =  340;
  cost[15,2,4] =  89;
  cost[15,3,4] =  332;
  cost[15,4,4] =  111;
  cost[15,5,4] =  222;
  cost[15,6,4] =  454;
  cost[15,7,4] =  137;
  cost[15,8,4] =  366;
  cost[15,9,4] =  238;
  cost[15,10,4] =  285;
  cost[15,11,4] =  318;
  cost[15,12,4] =  138;
  cost[15,13,4] =  23;
  cost[15,14,4] =  219;
  cost[15,15,4] =  271;
  cost[15,16,4] =  0;
  cost[15,17,4] =  83;
  cost[15,18,4] =  31;
  cost[15,19,4] =  296;
  cost[15,20,4] =  180;
  cost[15,21,4] =  327;
  cost[16,0,4] =  342;
  cost[16,1,4] =  164;
  cost[16,2,4] =  309;
  cost[16,3,4] =  67;
  cost[16,4,4] =  164;
  cost[16,5,4] =  170;
  cost[16,6,4] =  57;
  cost[16,7,4] =  48;
  cost[16,8,4] =  176;
  cost[16,9,4] =  261;
  cost[16,10,4] =  214;
  cost[16,11,4] =  26;
  cost[16,12,4] =  123;
  cost[16,13,4] =  163;
  cost[16,14,4] =  166;
  cost[16,15,4] =  26;
  cost[16,16,4] =  83;
  cost[16,17,4] =  0;
  cost[16,18,4] =  7;
  cost[16,19,4] =  289;
  cost[16,20,4] =  328;
  cost[16,21,4] =  304;
  cost[17,0,4] =  396;
  cost[17,1,4] =  340;
  cost[17,2,4] =  220;
  cost[17,3,4] =  161;
  cost[17,4,4] =  178;
  cost[17,5,4] =  109;
  cost[17,6,4] =  197;
  cost[17,7,4] =  0;
  cost[17,8,4] =  264;
  cost[17,9,4] =  409;
  cost[17,10,4] =  410;
  cost[17,11,4] =  262;
  cost[17,12,4] =  91;
  cost[17,13,4] =  287;
  cost[17,14,4] =  286;
  cost[17,15,4] =  154;
  cost[17,16,4] =  31;
  cost[17,17,4] =  7;
  cost[17,18,4] =  0;
  cost[17,19,4] =  152;
  cost[17,20,4] =  363;
  cost[17,21,4] =  264;
  cost[18,0,4] =  245;
  cost[18,1,4] =  234;
  cost[18,2,4] =  17;
  cost[18,3,4] =  439;
  cost[18,4,4] =  270;
  cost[18,5,4] =  201;
  cost[18,6,4] =  30;
  cost[18,7,4] =  235;
  cost[18,8,4] =  397;
  cost[18,9,4] =  286;
  cost[18,10,4] =  352;
  cost[18,11,4] =  225;
  cost[18,12,4] =  155;
  cost[18,13,4] =  125;
  cost[18,14,4] =  482;
  cost[18,15,4] =  415;
  cost[18,16,4] =  296;
  cost[18,17,4] =  289;
  cost[18,18,4] =  152;
  cost[18,19,4] =  0;
  cost[18,20,4] =  262;
  cost[18,21,4] =  225;
  cost[19,0,4] =  226;
  cost[19,1,4] =  68;
  cost[19,2,4] =  445;
  cost[19,3,4] =  309;
  cost[19,4,4] =  344;
  cost[19,5,4] =  301;
  cost[19,6,4] =  281;
  cost[19,7,4] =  54;
  cost[19,8,4] =  457;
  cost[19,9,4] =  262;
  cost[19,10,4] =  97;
  cost[19,11,4] =  103;
  cost[19,12,4] =  289;
  cost[19,13,4] =  296;
  cost[19,14,4] =  391;
  cost[19,15,4] =  165;
  cost[19,16,4] =  180;
  cost[19,17,4] =  328;
  cost[19,18,4] =  363;
  cost[19,19,4] =  262;
  cost[19,20,4] =  0;
  cost[19,21,4] =  113;
  cost[20,0,4] =  37;
  cost[20,1,4] =  18;
  cost[20,2,4] =  249;
  cost[20,3,4] =  361;
  cost[20,4,4] =  63;
  cost[20,5,4] =  98;
  cost[20,6,4] =  122;
  cost[20,7,4] =  169;
  cost[20,8,4] =  386;
  cost[20,9,4] =  161;
  cost[20,10,4] =  102;
  cost[20,11,4] =  51;
  cost[20,12,4] =  9;
  cost[20,13,4] =  298;
  cost[20,14,4] =  389;
  cost[20,15,4] =  277;
  cost[20,16,4] =  327;
  cost[20,17,4] =  304;
  cost[20,18,4] =  264;
  cost[20,19,4] =  225;
  cost[20,20,4] =  113;
  cost[20,21,4] =  0;
  cost[21,0,4] =  92;
  cost[21,1,4] =  275;
  cost[21,2,4] =  318;
  cost[21,3,4] =  9;
  cost[21,4,4] =  14;
  cost[21,5,4] =  5;
  cost[21,6,4] =  38;
  cost[21,7,4] =  340;
  cost[21,8,4] =  435;
  cost[21,9,4] =  340;
  cost[21,10,4] =  132;
  cost[21,11,4] =  463;
  cost[21,12,4] =  458;
  cost[21,13,4] =  200;
  cost[21,14,4] =  49;
  cost[21,15,4] =  22;
  cost[21,16,4] =  2;
  cost[21,17,4] =  103;
  cost[21,18,4] =  318;
  cost[21,19,4] =  71;
  cost[21,20,4] =  343;
  cost[21,21,4] =  267;
  cost[0,0,5] =  0;
  cost[0,1,5] =  0;
  cost[0,2,5] =  61;
  cost[0,3,5] =  296;
  cost[0,4,5] =  342;
  cost[0,5,5] =  144;
  cost[0,6,5] =  328;
  cost[0,7,5] =  154;
  cost[0,8,5] =  324;
  cost[0,9,5] =  172;
  cost[0,10,5] =  156;
  cost[0,11,5] =  43;
  cost[0,12,5] =  179;
  cost[0,13,5] =  446;
  cost[0,14,5] =  372;
  cost[0,15,5] =  483;
  cost[0,16,5] =  66;
  cost[0,17,5] =  417;
  cost[0,18,5] =  151;
  cost[0,19,5] =  430;
  cost[0,20,5] =  198;
  cost[0,21,5] =  469;
  cost[1,0,5] =  169;
  cost[1,1,5] =  61;
  cost[1,2,5] =  0;
  cost[1,3,5] =  211;
  cost[1,4,5] =  184;
  cost[1,5,5] =  289;
  cost[1,6,5] =  325;
  cost[1,7,5] =  43;
  cost[1,8,5] =  145;
  cost[1,9,5] =  109;
  cost[1,10,5] =  317;
  cost[1,11,5] =  166;
  cost[1,12,5] =  170;
  cost[1,13,5] =  130;
  cost[1,14,5] =  24;
  cost[1,15,5] =  314;
  cost[1,16,5] =  459;
  cost[1,17,5] =  179;
  cost[1,18,5] =  155;
  cost[1,19,5] =  147;
  cost[1,20,5] =  336;
  cost[1,21,5] =  199;
  cost[2,0,5] =  248;
  cost[2,1,5] =  296;
  cost[2,2,5] =  211;
  cost[2,3,5] =  0;
  cost[2,4,5] =  87;
  cost[2,5,5] =  326;
  cost[2,6,5] =  364;
  cost[2,7,5] =  20;
  cost[2,8,5] =  478;
  cost[2,9,5] =  311;
  cost[2,10,5] =  218;
  cost[2,11,5] =  463;
  cost[2,12,5] =  423;
  cost[2,13,5] =  195;
  cost[2,14,5] =  191;
  cost[2,15,5] =  123;
  cost[2,16,5] =  1;
  cost[2,17,5] =  33;
  cost[2,18,5] =  166;
  cost[2,19,5] =  146;
  cost[2,20,5] =  142;
  cost[2,21,5] =  0;
  cost[3,0,5] =  206;
  cost[3,1,5] =  342;
  cost[3,2,5] =  184;
  cost[3,3,5] =  87;
  cost[3,4,5] =  0;
  cost[3,5,5] =  131;
  cost[3,6,5] =  338;
  cost[3,7,5] =  143;
  cost[3,8,5] =  106;
  cost[3,9,5] =  33;
  cost[3,10,5] =  299;
  cost[3,11,5] =  253;
  cost[3,12,5] =  369;
  cost[3,13,5] =  14;
  cost[3,14,5] =  96;
  cost[3,15,5] =  184;
  cost[3,16,5] =  101;
  cost[3,17,5] =  423;
  cost[3,18,5] =  65;
  cost[3,19,5] =  121;
  cost[3,20,5] =  417;
  cost[3,21,5] =  376;
  cost[4,0,5] =  166;
  cost[4,1,5] =  144;
  cost[4,2,5] =  289;
  cost[4,3,5] =  326;
  cost[4,4,5] =  131;
  cost[4,5,5] =  0;
  cost[4,6,5] =  315;
  cost[4,7,5] =  51;
  cost[4,8,5] =  104;
  cost[4,9,5] =  438;
  cost[4,10,5] =  53;
  cost[4,11,5] =  138;
  cost[4,12,5] =  121;
  cost[4,13,5] =  199;
  cost[4,14,5] =  280;
  cost[4,15,5] =  121;
  cost[4,16,5] =  29;
  cost[4,17,5] =  109;
  cost[4,18,5] =  252;
  cost[4,19,5] =  367;
  cost[4,20,5] =  253;
  cost[4,21,5] =  358;
  cost[5,0,5] =  24;
  cost[5,1,5] =  328;
  cost[5,2,5] =  325;
  cost[5,3,5] =  364;
  cost[5,4,5] =  338;
  cost[5,5,5] =  315;
  cost[5,6,5] =  0;
  cost[5,7,5] =  128;
  cost[5,8,5] =  286;
  cost[5,9,5] =  83;
  cost[5,10,5] =  225;
  cost[5,11,5] =  470;
  cost[5,12,5] =  184;
  cost[5,13,5] =  164;
  cost[5,14,5] =  51;
  cost[5,15,5] =  306;
  cost[5,16,5] =  97;
  cost[5,17,5] =  427;
  cost[5,18,5] =  162;
  cost[5,19,5] =  10;
  cost[5,20,5] =  259;
  cost[5,21,5] =  214;
  cost[6,0,5] =  45;
  cost[6,1,5] =  154;
  cost[6,2,5] =  43;
  cost[6,3,5] =  20;
  cost[6,4,5] =  143;
  cost[6,5,5] =  51;
  cost[6,6,5] =  128;
  cost[6,7,5] =  0;
  cost[6,8,5] =  267;
  cost[6,9,5] =  253;
  cost[6,10,5] =  334;
  cost[6,11,5] =  467;
  cost[6,12,5] =  50;
  cost[6,13,5] =  456;
  cost[6,14,5] =  13;
  cost[6,15,5] =  159;
  cost[6,16,5] =  225;
  cost[6,17,5] =  380;
  cost[6,18,5] =  412;
  cost[6,19,5] =  100;
  cost[6,20,5] =  297;
  cost[6,21,5] =  481;
  cost[7,0,5] =  391;
  cost[7,1,5] =  324;
  cost[7,2,5] =  145;
  cost[7,3,5] =  478;
  cost[7,4,5] =  106;
  cost[7,5,5] =  104;
  cost[7,6,5] =  286;
  cost[7,7,5] =  267;
  cost[7,8,5] =  0;
  cost[7,9,5] =  80;
  cost[7,10,5] =  454;
  cost[7,11,5] =  86;
  cost[7,12,5] =  264;
  cost[7,13,5] =  134;
  cost[7,14,5] =  138;
  cost[7,15,5] =  87;
  cost[7,16,5] =  232;
  cost[7,17,5] =  82;
  cost[7,18,5] =  249;
  cost[7,19,5] =  242;
  cost[7,20,5] =  341;
  cost[7,21,5] =  464;
  cost[8,0,5] =  425;
  cost[8,1,5] =  172;
  cost[8,2,5] =  109;
  cost[8,3,5] =  311;
  cost[8,4,5] =  33;
  cost[8,5,5] =  438;
  cost[8,6,5] =  83;
  cost[8,7,5] =  253;
  cost[8,8,5] =  80;
  cost[8,9,5] =  0;
  cost[8,10,5] =  248;
  cost[8,11,5] =  128;
  cost[8,12,5] =  405;
  cost[8,13,5] =  232;
  cost[8,14,5] =  178;
  cost[8,15,5] =  378;
  cost[8,16,5] =  245;
  cost[8,17,5] =  337;
  cost[8,18,5] =  119;
  cost[8,19,5] =  141;
  cost[8,20,5] =  266;
  cost[8,21,5] =  219;
  cost[9,0,5] =  477;
  cost[9,1,5] =  156;
  cost[9,2,5] =  317;
  cost[9,3,5] =  218;
  cost[9,4,5] =  299;
  cost[9,5,5] =  53;
  cost[9,6,5] =  225;
  cost[9,7,5] =  334;
  cost[9,8,5] =  454;
  cost[9,9,5] =  248;
  cost[9,10,5] =  0;
  cost[9,11,5] =  448;
  cost[9,12,5] =  54;
  cost[9,13,5] =  343;
  cost[9,14,5] =  418;
  cost[9,15,5] =  141;
  cost[9,16,5] =  124;
  cost[9,17,5] =  69;
  cost[9,18,5] =  279;
  cost[9,19,5] =  211;
  cost[9,20,5] =  301;
  cost[9,21,5] =  361;
  cost[10,0,5] =  252;
  cost[10,1,5] =  43;
  cost[10,2,5] =  166;
  cost[10,3,5] =  463;
  cost[10,4,5] =  253;
  cost[10,5,5] =  138;
  cost[10,6,5] =  470;
  cost[10,7,5] =  467;
  cost[10,8,5] =  86;
  cost[10,9,5] =  128;
  cost[10,10,5] =  448;
  cost[10,11,5] =  0;
  cost[10,12,5] =  218;
  cost[10,13,5] =  442;
  cost[10,14,5] =  419;
  cost[10,15,5] =  289;
  cost[10,16,5] =  206;
  cost[10,17,5] =  63;
  cost[10,18,5] =  211;
  cost[10,19,5] =  438;
  cost[10,20,5] =  241;
  cost[10,21,5] =  105;
  cost[11,0,5] =  137;
  cost[11,1,5] =  179;
  cost[11,2,5] =  170;
  cost[11,3,5] =  423;
  cost[11,4,5] =  369;
  cost[11,5,5] =  121;
  cost[11,6,5] =  184;
  cost[11,7,5] =  50;
  cost[11,8,5] =  264;
  cost[11,9,5] =  405;
  cost[11,10,5] =  54;
  cost[11,11,5] =  218;
  cost[11,12,5] =  0;
  cost[11,13,5] =  225;
  cost[11,14,5] =  342;
  cost[11,15,5] =  361;
  cost[11,16,5] =  445;
  cost[11,17,5] =  296;
  cost[11,18,5] =  140;
  cost[11,19,5] =  410;
  cost[11,20,5] =  351;
  cost[11,21,5] =  0;
  cost[12,0,5] =  87;
  cost[12,1,5] =  446;
  cost[12,2,5] =  130;
  cost[12,3,5] =  195;
  cost[12,4,5] =  14;
  cost[12,5,5] =  199;
  cost[12,6,5] =  164;
  cost[12,7,5] =  456;
  cost[12,8,5] =  134;
  cost[12,9,5] =  232;
  cost[12,10,5] =  343;
  cost[12,11,5] =  442;
  cost[12,12,5] =  225;
  cost[12,13,5] =  0;
  cost[12,14,5] =  125;
  cost[12,15,5] =  414;
  cost[12,16,5] =  287;
  cost[12,17,5] =  337;
  cost[12,18,5] =  232;
  cost[12,19,5] =  165;
  cost[12,20,5] =  315;
  cost[12,21,5] =  293;
  cost[13,0,5] =  173;
  cost[13,1,5] =  372;
  cost[13,2,5] =  24;
  cost[13,3,5] =  191;
  cost[13,4,5] =  96;
  cost[13,5,5] =  280;
  cost[13,6,5] =  51;
  cost[13,7,5] =  13;
  cost[13,8,5] =  138;
  cost[13,9,5] =  178;
  cost[13,10,5] =  418;
  cost[13,11,5] =  419;
  cost[13,12,5] =  342;
  cost[13,13,5] =  125;
  cost[13,14,5] =  0;
  cost[13,15,5] =  228;
  cost[13,16,5] =  188;
  cost[13,17,5] =  480;
  cost[13,18,5] =  291;
  cost[13,19,5] =  400;
  cost[13,20,5] =  435;
  cost[13,21,5] =  48;
  cost[14,0,5] =  212;
  cost[14,1,5] =  483;
  cost[14,2,5] =  314;
  cost[14,3,5] =  123;
  cost[14,4,5] =  184;
  cost[14,5,5] =  121;
  cost[14,6,5] =  306;
  cost[14,7,5] =  159;
  cost[14,8,5] =  87;
  cost[14,9,5] =  378;
  cost[14,10,5] =  141;
  cost[14,11,5] =  289;
  cost[14,12,5] =  361;
  cost[14,13,5] =  414;
  cost[14,14,5] =  228;
  cost[14,15,5] =  0;
  cost[14,16,5] =  143;
  cost[14,17,5] =  247;
  cost[14,18,5] =  9;
  cost[14,19,5] =  20;
  cost[14,20,5] =  209;
  cost[14,21,5] =  306;
  cost[15,0,5] =  413;
  cost[15,1,5] =  66;
  cost[15,2,5] =  459;
  cost[15,3,5] =  1;
  cost[15,4,5] =  101;
  cost[15,5,5] =  29;
  cost[15,6,5] =  97;
  cost[15,7,5] =  225;
  cost[15,8,5] =  232;
  cost[15,9,5] =  245;
  cost[15,10,5] =  124;
  cost[15,11,5] =  206;
  cost[15,12,5] =  445;
  cost[15,13,5] =  287;
  cost[15,14,5] =  188;
  cost[15,15,5] =  143;
  cost[15,16,5] =  0;
  cost[15,17,5] =  174;
  cost[15,18,5] =  161;
  cost[15,19,5] =  480;
  cost[15,20,5] =  182;
  cost[15,21,5] =  286;
  cost[16,0,5] =  330;
  cost[16,1,5] =  417;
  cost[16,2,5] =  179;
  cost[16,3,5] =  33;
  cost[16,4,5] =  423;
  cost[16,5,5] =  109;
  cost[16,6,5] =  427;
  cost[16,7,5] =  380;
  cost[16,8,5] =  82;
  cost[16,9,5] =  337;
  cost[16,10,5] =  69;
  cost[16,11,5] =  63;
  cost[16,12,5] =  296;
  cost[16,13,5] =  337;
  cost[16,14,5] =  480;
  cost[16,15,5] =  247;
  cost[16,16,5] =  174;
  cost[16,17,5] =  0;
  cost[16,18,5] =  140;
  cost[16,19,5] =  160;
  cost[16,20,5] =  151;
  cost[16,21,5] =  455;
  cost[17,0,5] =  380;
  cost[17,1,5] =  151;
  cost[17,2,5] =  155;
  cost[17,3,5] =  166;
  cost[17,4,5] =  65;
  cost[17,5,5] =  252;
  cost[17,6,5] =  162;
  cost[17,7,5] =  412;
  cost[17,8,5] =  249;
  cost[17,9,5] =  119;
  cost[17,10,5] =  279;
  cost[17,11,5] =  211;
  cost[17,12,5] =  140;
  cost[17,13,5] =  232;
  cost[17,14,5] =  291;
  cost[17,15,5] =  9;
  cost[17,16,5] =  161;
  cost[17,17,5] =  140;
  cost[17,18,5] =  0;
  cost[17,19,5] =  244;
  cost[17,20,5] =  197;
  cost[17,21,5] =  240;
  cost[18,0,5] =  186;
  cost[18,1,5] =  430;
  cost[18,2,5] =  147;
  cost[18,3,5] =  146;
  cost[18,4,5] =  121;
  cost[18,5,5] =  367;
  cost[18,6,5] =  10;
  cost[18,7,5] =  100;
  cost[18,8,5] =  242;
  cost[18,9,5] =  141;
  cost[18,10,5] =  211;
  cost[18,11,5] =  438;
  cost[18,12,5] =  410;
  cost[18,13,5] =  165;
  cost[18,14,5] =  400;
  cost[18,15,5] =  20;
  cost[18,16,5] =  480;
  cost[18,17,5] =  160;
  cost[18,18,5] =  244;
  cost[18,19,5] =  0;
  cost[18,20,5] =  156;
  cost[18,21,5] =  191;
  cost[19,0,5] =  67;
  cost[19,1,5] =  198;
  cost[19,2,5] =  336;
  cost[19,3,5] =  142;
  cost[19,4,5] =  417;
  cost[19,5,5] =  253;
  cost[19,6,5] =  259;
  cost[19,7,5] =  297;
  cost[19,8,5] =  341;
  cost[19,9,5] =  266;
  cost[19,10,5] =  301;
  cost[19,11,5] =  241;
  cost[19,12,5] =  351;
  cost[19,13,5] =  315;
  cost[19,14,5] =  435;
  cost[19,15,5] =  209;
  cost[19,16,5] =  182;
  cost[19,17,5] =  151;
  cost[19,18,5] =  197;
  cost[19,19,5] =  156;
  cost[19,20,5] =  0;
  cost[19,21,5] =  343;
  cost[20,0,5] =  206;
  cost[20,1,5] =  469;
  cost[20,2,5] =  199;
  cost[20,3,5] =  0;
  cost[20,4,5] =  376;
  cost[20,5,5] =  358;
  cost[20,6,5] =  214;
  cost[20,7,5] =  481;
  cost[20,8,5] =  464;
  cost[20,9,5] =  219;
  cost[20,10,5] =  361;
  cost[20,11,5] =  105;
  cost[20,12,5] =  0;
  cost[20,13,5] =  293;
  cost[20,14,5] =  48;
  cost[20,15,5] =  306;
  cost[20,16,5] =  286;
  cost[20,17,5] =  455;
  cost[20,18,5] =  240;
  cost[20,19,5] =  191;
  cost[20,20,5] =  343;
  cost[20,21,5] =  0;
  cost[21,0,5] =  50;
  cost[21,1,5] =  112;
  cost[21,2,5] =  326;
  cost[21,3,5] =  313;
  cost[21,4,5] =  340;
  cost[21,5,5] =  400;
  cost[21,6,5] =  115;
  cost[21,7,5] =  228;
  cost[21,8,5] =  358;
  cost[21,9,5] =  438;
  cost[21,10,5] =  461;
  cost[21,11,5] =  200;
  cost[21,12,5] =  345;
  cost[21,13,5] =  383;
  cost[21,14,5] =  22;
  cost[21,15,5] =  161;
  cost[21,16,5] =  411;
  cost[21,17,5] =  453;
  cost[21,18,5] =  240;
  cost[21,19,5] =  54;
  cost[21,20,5] =  198;
  cost[21,21,5] =  352;
  cost[0,0,6] =  0;
  cost[0,1,6] =  0;
  cost[0,2,6] =  175;
  cost[0,3,6] =  380;
  cost[0,4,6] =  287;
  cost[0,5,6] =  349;
  cost[0,6,6] =  58;
  cost[0,7,6] =  283;
  cost[0,8,6] =  48;
  cost[0,9,6] =  345;
  cost[0,10,6] =  211;
  cost[0,11,6] =  34;
  cost[0,12,6] =  1;
  cost[0,13,6] =  371;
  cost[0,14,6] =  186;
  cost[0,15,6] =  456;
  cost[0,16,6] =  341;
  cost[0,17,6] =  237;
  cost[0,18,6] =  217;
  cost[0,19,6] =  55;
  cost[0,20,6] =  477;
  cost[0,21,6] =  457;
  cost[1,0,6] =  269;
  cost[1,1,6] =  175;
  cost[1,2,6] =  0;
  cost[1,3,6] =  165;
  cost[1,4,6] =  115;
  cost[1,5,6] =  328;
  cost[1,6,6] =  25;
  cost[1,7,6] =  313;
  cost[1,8,6] =  271;
  cost[1,9,6] =  378;
  cost[1,10,6] =  48;
  cost[1,11,6] =  422;
  cost[1,12,6] =  69;
  cost[1,13,6] =  429;
  cost[1,14,6] =  225;
  cost[1,15,6] =  419;
  cost[1,16,6] =  4;
  cost[1,17,6] =  25;
  cost[1,18,6] =  467;
  cost[1,19,6] =  349;
  cost[1,20,6] =  237;
  cost[1,21,6] =  18;
  cost[2,0,6] =  342;
  cost[2,1,6] =  380;
  cost[2,2,6] =  165;
  cost[2,3,6] =  0;
  cost[2,4,6] =  205;
  cost[2,5,6] =  323;
  cost[2,6,6] =  465;
  cost[2,7,6] =  442;
  cost[2,8,6] =  56;
  cost[2,9,6] =  37;
  cost[2,10,6] =  436;
  cost[2,11,6] =  30;
  cost[2,12,6] =  97;
  cost[2,13,6] =  102;
  cost[2,14,6] =  196;
  cost[2,15,6] =  213;
  cost[2,16,6] =  431;
  cost[2,17,6] =  221;
  cost[2,18,6] =  42;
  cost[2,19,6] =  218;
  cost[2,20,6] =  116;
  cost[2,21,6] =  91;
  cost[3,0,6] =  438;
  cost[3,1,6] =  287;
  cost[3,2,6] =  115;
  cost[3,3,6] =  205;
  cost[3,4,6] =  0;
  cost[3,5,6] =  37;
  cost[3,6,6] =  382;
  cost[3,7,6] =  121;
  cost[3,8,6] =  41;
  cost[3,9,6] =  408;
  cost[3,10,6] =  104;
  cost[3,11,6] =  390;
  cost[3,12,6] =  161;
  cost[3,13,6] =  123;
  cost[3,14,6] =  257;
  cost[3,15,6] =  286;
  cost[3,16,6] =  328;
  cost[3,17,6] =  97;
  cost[3,18,6] =  268;
  cost[3,19,6] =  287;
  cost[3,20,6] =  153;
  cost[3,21,6] =  305;
  cost[4,0,6] =  55;
  cost[4,1,6] =  349;
  cost[4,2,6] =  328;
  cost[4,3,6] =  323;
  cost[4,4,6] =  37;
  cost[4,5,6] =  0;
  cost[4,6,6] =  402;
  cost[4,7,6] =  342;
  cost[4,8,6] =  380;
  cost[4,9,6] =  131;
  cost[4,10,6] =  290;
  cost[4,11,6] =  118;
  cost[4,12,6] =  174;
  cost[4,13,6] =  24;
  cost[4,14,6] =  234;
  cost[4,15,6] =  266;
  cost[4,16,6] =  181;
  cost[4,17,6] =  420;
  cost[4,18,6] =  303;
  cost[4,19,6] =  80;
  cost[4,20,6] =  57;
  cost[4,21,6] =  344;
  cost[5,0,6] =  0;
  cost[5,1,6] =  58;
  cost[5,2,6] =  25;
  cost[5,3,6] =  465;
  cost[5,4,6] =  382;
  cost[5,5,6] =  402;
  cost[5,6,6] =  0;
  cost[5,7,6] =  251;
  cost[5,8,6] =  166;
  cost[5,9,6] =  285;
  cost[5,10,6] =  25;
  cost[5,11,6] =  452;
  cost[5,12,6] =  130;
  cost[5,13,6] =  122;
  cost[5,14,6] =  236;
  cost[5,15,6] =  417;
  cost[5,16,6] =  275;
  cost[5,17,6] =  57;
  cost[5,18,6] =  174;
  cost[5,19,6] =  460;
  cost[5,20,6] =  460;
  cost[5,21,6] =  32;
  cost[6,0,6] =  74;
  cost[6,1,6] =  283;
  cost[6,2,6] =  313;
  cost[6,3,6] =  442;
  cost[6,4,6] =  121;
  cost[6,5,6] =  342;
  cost[6,6,6] =  251;
  cost[6,7,6] =  0;
  cost[6,8,6] =  322;
  cost[6,9,6] =  475;
  cost[6,10,6] =  282;
  cost[6,11,6] =  347;
  cost[6,12,6] =  225;
  cost[6,13,6] =  64;
  cost[6,14,6] =  44;
  cost[6,15,6] =  162;
  cost[6,16,6] =  368;
  cost[6,17,6] =  125;
  cost[6,18,6] =  219;
  cost[6,19,6] =  228;
  cost[6,20,6] =  130;
  cost[6,21,6] =  381;
  cost[7,0,6] =  148;
  cost[7,1,6] =  48;
  cost[7,2,6] =  271;
  cost[7,3,6] =  56;
  cost[7,4,6] =  41;
  cost[7,5,6] =  380;
  cost[7,6,6] =  166;
  cost[7,7,6] =  322;
  cost[7,8,6] =  0;
  cost[7,9,6] =  183;
  cost[7,10,6] =  21;
  cost[7,11,6] =  264;
  cost[7,12,6] =  314;
  cost[7,13,6] =  143;
  cost[7,14,6] =  16;
  cost[7,15,6] =  248;
  cost[7,16,6] =  419;
  cost[7,17,6] =  74;
  cost[7,18,6] =  422;
  cost[7,19,6] =  395;
  cost[7,20,6] =  50;
  cost[7,21,6] =  454;
  cost[8,0,6] =  15;
  cost[8,1,6] =  345;
  cost[8,2,6] =  378;
  cost[8,3,6] =  37;
  cost[8,4,6] =  408;
  cost[8,5,6] =  131;
  cost[8,6,6] =  285;
  cost[8,7,6] =  475;
  cost[8,8,6] =  183;
  cost[8,9,6] =  0;
  cost[8,10,6] =  293;
  cost[8,11,6] =  259;
  cost[8,12,6] =  440;
  cost[8,13,6] =  157;
  cost[8,14,6] =  1;
  cost[8,15,6] =  21;
  cost[8,16,6] =  202;
  cost[8,17,6] =  163;
  cost[8,18,6] =  389;
  cost[8,19,6] =  327;
  cost[8,20,6] =  383;
  cost[8,21,6] =  134;
  cost[9,0,6] =  129;
  cost[9,1,6] =  211;
  cost[9,2,6] =  48;
  cost[9,3,6] =  436;
  cost[9,4,6] =  104;
  cost[9,5,6] =  290;
  cost[9,6,6] =  25;
  cost[9,7,6] =  282;
  cost[9,8,6] =  21;
  cost[9,9,6] =  293;
  cost[9,10,6] =  0;
  cost[9,11,6] =  131;
  cost[9,12,6] =  269;
  cost[9,13,6] =  464;
  cost[9,14,6] =  152;
  cost[9,15,6] =  50;
  cost[9,16,6] =  294;
  cost[9,17,6] =  296;
  cost[9,18,6] =  67;
  cost[9,19,6] =  58;
  cost[9,20,6] =  231;
  cost[9,21,6] =  141;
  cost[10,0,6] =  16;
  cost[10,1,6] =  34;
  cost[10,2,6] =  422;
  cost[10,3,6] =  30;
  cost[10,4,6] =  390;
  cost[10,5,6] =  118;
  cost[10,6,6] =  452;
  cost[10,7,6] =  347;
  cost[10,8,6] =  264;
  cost[10,9,6] =  259;
  cost[10,10,6] =  131;
  cost[10,11,6] =  0;
  cost[10,12,6] =  191;
  cost[10,13,6] =  451;
  cost[10,14,6] =  411;
  cost[10,15,6] =  349;
  cost[10,16,6] =  261;
  cost[10,17,6] =  187;
  cost[10,18,6] =  306;
  cost[10,19,6] =  418;
  cost[10,20,6] =  188;
  cost[10,21,6] =  328;
  cost[11,0,6] =  313;
  cost[11,1,6] =  1;
  cost[11,2,6] =  69;
  cost[11,3,6] =  97;
  cost[11,4,6] =  161;
  cost[11,5,6] =  174;
  cost[11,6,6] =  130;
  cost[11,7,6] =  225;
  cost[11,8,6] =  314;
  cost[11,9,6] =  440;
  cost[11,10,6] =  269;
  cost[11,11,6] =  191;
  cost[11,12,6] =  0;
  cost[11,13,6] =  234;
  cost[11,14,6] =  464;
  cost[11,15,6] =  251;
  cost[11,16,6] =  368;
  cost[11,17,6] =  438;
  cost[11,18,6] =  48;
  cost[11,19,6] =  16;
  cost[11,20,6] =  224;
  cost[11,21,6] =  28;
  cost[12,0,6] =  231;
  cost[12,1,6] =  371;
  cost[12,2,6] =  429;
  cost[12,3,6] =  102;
  cost[12,4,6] =  123;
  cost[12,5,6] =  24;
  cost[12,6,6] =  122;
  cost[12,7,6] =  64;
  cost[12,8,6] =  143;
  cost[12,9,6] =  157;
  cost[12,10,6] =  464;
  cost[12,11,6] =  451;
  cost[12,12,6] =  234;
  cost[12,13,6] =  0;
  cost[12,14,6] =  323;
  cost[12,15,6] =  464;
  cost[12,16,6] =  341;
  cost[12,17,6] =  381;
  cost[12,18,6] =  212;
  cost[12,19,6] =  482;
  cost[12,20,6] =  378;
  cost[12,21,6] =  355;
  cost[13,0,6] =  345;
  cost[13,1,6] =  186;
  cost[13,2,6] =  225;
  cost[13,3,6] =  196;
  cost[13,4,6] =  257;
  cost[13,5,6] =  234;
  cost[13,6,6] =  236;
  cost[13,7,6] =  44;
  cost[13,8,6] =  16;
  cost[13,9,6] =  1;
  cost[13,10,6] =  152;
  cost[13,11,6] =  411;
  cost[13,12,6] =  464;
  cost[13,13,6] =  323;
  cost[13,14,6] =  0;
  cost[13,15,6] =  283;
  cost[13,16,6] =  56;
  cost[13,17,6] =  123;
  cost[13,18,6] =  470;
  cost[13,19,6] =  362;
  cost[13,20,6] =  58;
  cost[13,21,6] =  175;
  cost[14,0,6] =  284;
  cost[14,1,6] =  456;
  cost[14,2,6] =  419;
  cost[14,3,6] =  213;
  cost[14,4,6] =  286;
  cost[14,5,6] =  266;
  cost[14,6,6] =  417;
  cost[14,7,6] =  162;
  cost[14,8,6] =  248;
  cost[14,9,6] =  21;
  cost[14,10,6] =  50;
  cost[14,11,6] =  349;
  cost[14,12,6] =  251;
  cost[14,13,6] =  464;
  cost[14,14,6] =  283;
  cost[14,15,6] =  0;
  cost[14,16,6] =  44;
  cost[14,17,6] =  440;
  cost[14,18,6] =  176;
  cost[14,19,6] =  295;
  cost[14,20,6] =  325;
  cost[14,21,6] =  131;
  cost[15,0,6] =  129;
  cost[15,1,6] =  341;
  cost[15,2,6] =  4;
  cost[15,3,6] =  431;
  cost[15,4,6] =  328;
  cost[15,5,6] =  181;
  cost[15,6,6] =  275;
  cost[15,7,6] =  368;
  cost[15,8,6] =  419;
  cost[15,9,6] =  202;
  cost[15,10,6] =  294;
  cost[15,11,6] =  261;
  cost[15,12,6] =  368;
  cost[15,13,6] =  341;
  cost[15,14,6] =  56;
  cost[15,15,6] =  44;
  cost[15,16,6] =  0;
  cost[15,17,6] =  355;
  cost[15,18,6] =  373;
  cost[15,19,6] =  26;
  cost[15,20,6] =  146;
  cost[15,21,6] =  212;
  cost[16,0,6] =  210;
  cost[16,1,6] =  237;
  cost[16,2,6] =  25;
  cost[16,3,6] =  221;
  cost[16,4,6] =  97;
  cost[16,5,6] =  420;
  cost[16,6,6] =  57;
  cost[16,7,6] =  125;
  cost[16,8,6] =  74;
  cost[16,9,6] =  163;
  cost[16,10,6] =  296;
  cost[16,11,6] =  187;
  cost[16,12,6] =  438;
  cost[16,13,6] =  381;
  cost[16,14,6] =  123;
  cost[16,15,6] =  440;
  cost[16,16,6] =  355;
  cost[16,17,6] =  0;
  cost[16,18,6] =  110;
  cost[16,19,6] =  220;
  cost[16,20,6] =  2;
  cost[16,21,6] =  5;
  cost[17,0,6] =  151;
  cost[17,1,6] =  217;
  cost[17,2,6] =  467;
  cost[17,3,6] =  42;
  cost[17,4,6] =  268;
  cost[17,5,6] =  303;
  cost[17,6,6] =  174;
  cost[17,7,6] =  219;
  cost[17,8,6] =  422;
  cost[17,9,6] =  389;
  cost[17,10,6] =  67;
  cost[17,11,6] =  306;
  cost[17,12,6] =  48;
  cost[17,13,6] =  212;
  cost[17,14,6] =  470;
  cost[17,15,6] =  176;
  cost[17,16,6] =  373;
  cost[17,17,6] =  110;
  cost[17,18,6] =  0;
  cost[17,19,6] =  351;
  cost[17,20,6] =  375;
  cost[17,21,6] =  248;
  cost[18,0,6] =  277;
  cost[18,1,6] =  55;
  cost[18,2,6] =  349;
  cost[18,3,6] =  218;
  cost[18,4,6] =  287;
  cost[18,5,6] =  80;
  cost[18,6,6] =  460;
  cost[18,7,6] =  228;
  cost[18,8,6] =  395;
  cost[18,9,6] =  327;
  cost[18,10,6] =  58;
  cost[18,11,6] =  418;
  cost[18,12,6] =  16;
  cost[18,13,6] =  482;
  cost[18,14,6] =  362;
  cost[18,15,6] =  295;
  cost[18,16,6] =  26;
  cost[18,17,6] =  220;
  cost[18,18,6] =  351;
  cost[18,19,6] =  0;
  cost[18,20,6] =  127;
  cost[18,21,6] =  48;
  cost[19,0,6] =  38;
  cost[19,1,6] =  477;
  cost[19,2,6] =  237;
  cost[19,3,6] =  116;
  cost[19,4,6] =  153;
  cost[19,5,6] =  57;
  cost[19,6,6] =  460;
  cost[19,7,6] =  130;
  cost[19,8,6] =  50;
  cost[19,9,6] =  383;
  cost[19,10,6] =  231;
  cost[19,11,6] =  188;
  cost[19,12,6] =  224;
  cost[19,13,6] =  378;
  cost[19,14,6] =  58;
  cost[19,15,6] =  325;
  cost[19,16,6] =  146;
  cost[19,17,6] =  2;
  cost[19,18,6] =  375;
  cost[19,19,6] =  127;
  cost[19,20,6] =  0;
  cost[19,21,6] =  244;
  cost[20,0,6] =  226;
  cost[20,1,6] =  457;
  cost[20,2,6] =  18;
  cost[20,3,6] =  91;
  cost[20,4,6] =  305;
  cost[20,5,6] =  344;
  cost[20,6,6] =  32;
  cost[20,7,6] =  381;
  cost[20,8,6] =  454;
  cost[20,9,6] =  134;
  cost[20,10,6] =  141;
  cost[20,11,6] =  328;
  cost[20,12,6] =  28;
  cost[20,13,6] =  355;
  cost[20,14,6] =  175;
  cost[20,15,6] =  131;
  cost[20,16,6] =  212;
  cost[20,17,6] =  5;
  cost[20,18,6] =  248;
  cost[20,19,6] =  48;
  cost[20,20,6] =  244;
  cost[20,21,6] =  0;
  cost[21,0,6] =  321;
  cost[21,1,6] =  60;
  cost[21,2,6] =  350;
  cost[21,3,6] =  157;
  cost[21,4,6] =  240;
  cost[21,5,6] =  4;
  cost[21,6,6] =  356;
  cost[21,7,6] =  480;
  cost[21,8,6] =  268;
  cost[21,9,6] =  457;
  cost[21,10,6] =  480;
  cost[21,11,6] =  137;
  cost[21,12,6] =  168;
  cost[21,13,6] =  190;
  cost[21,14,6] =  206;
  cost[21,15,6] =  344;
  cost[21,16,6] =  7;
  cost[21,17,6] =  91;
  cost[21,18,6] =  474;
  cost[21,19,6] =  54;
  cost[21,20,6] =  98;
  cost[21,21,6] =  420;
  cost[0,0,7] =  0;
  cost[0,1,7] =  0;
  cost[0,2,7] =  67;
  cost[0,3,7] =  254;
  cost[0,4,7] =  475;
  cost[0,5,7] =  423;
  cost[0,6,7] =  144;
  cost[0,7,7] =  18;
  cost[0,8,7] =  85;
  cost[0,9,7] =  357;
  cost[0,10,7] =  26;
  cost[0,11,7] =  89;
  cost[0,12,7] =  467;
  cost[0,13,7] =  246;
  cost[0,14,7] =  91;
  cost[0,15,7] =  472;
  cost[0,16,7] =  338;
  cost[0,17,7] =  284;
  cost[0,18,7] =  340;
  cost[0,19,7] =  229;
  cost[0,20,7] =  49;
  cost[0,21,7] =  330;
  cost[1,0,7] =  327;
  cost[1,1,7] =  67;
  cost[1,2,7] =  0;
  cost[1,3,7] =  379;
  cost[1,4,7] =  161;
  cost[1,5,7] =  27;
  cost[1,6,7] =  139;
  cost[1,7,7] =  260;
  cost[1,8,7] =  319;
  cost[1,9,7] =  76;
  cost[1,10,7] =  170;
  cost[1,11,7] =  452;
  cost[1,12,7] =  143;
  cost[1,13,7] =  425;
  cost[1,14,7] =  443;
  cost[1,15,7] =  83;
  cost[1,16,7] =  85;
  cost[1,17,7] =  462;
  cost[1,18,7] =  168;
  cost[1,19,7] =  442;
  cost[1,20,7] =  4;
  cost[1,21,7] =  257;
  cost[2,0,7] =  438;
  cost[2,1,7] =  254;
  cost[2,2,7] =  379;
  cost[2,3,7] =  0;
  cost[2,4,7] =  348;
  cost[2,5,7] =  415;
  cost[2,6,7] =  104;
  cost[2,7,7] =  149;
  cost[2,8,7] =  271;
  cost[2,9,7] =  334;
  cost[2,10,7] =  199;
  cost[2,11,7] =  118;
  cost[2,12,7] =  442;
  cost[2,13,7] =  376;
  cost[2,14,7] =  13;
  cost[2,15,7] =  120;
  cost[2,16,7] =  403;
  cost[2,17,7] =  153;
  cost[2,18,7] =  380;
  cost[2,19,7] =  239;
  cost[2,20,7] =  229;
  cost[2,21,7] =  67;
  cost[3,0,7] =  135;
  cost[3,1,7] =  475;
  cost[3,2,7] =  161;
  cost[3,3,7] =  348;
  cost[3,4,7] =  0;
  cost[3,5,7] =  8;
  cost[3,6,7] =  167;
  cost[3,7,7] =  456;
  cost[3,8,7] =  94;
  cost[3,9,7] =  145;
  cost[3,10,7] =  140;
  cost[3,11,7] =  53;
  cost[3,12,7] =  149;
  cost[3,13,7] =  398;
  cost[3,14,7] =  480;
  cost[3,15,7] =  400;
  cost[3,16,7] =  263;
  cost[3,17,7] =  412;
  cost[3,18,7] =  21;
  cost[3,19,7] =  412;
  cost[3,20,7] =  200;
  cost[3,21,7] =  355;
  cost[4,0,7] =  7;
  cost[4,1,7] =  423;
  cost[4,2,7] =  27;
  cost[4,3,7] =  415;
  cost[4,4,7] =  8;
  cost[4,5,7] =  0;
  cost[4,6,7] =  313;
  cost[4,7,7] =  20;
  cost[4,8,7] =  332;
  cost[4,9,7] =  433;
  cost[4,10,7] =  424;
  cost[4,11,7] =  1;
  cost[4,12,7] =  330;
  cost[4,13,7] =  179;
  cost[4,14,7] =  231;
  cost[4,15,7] =  397;
  cost[4,16,7] =  386;
  cost[4,17,7] =  121;
  cost[4,18,7] =  406;
  cost[4,19,7] =  70;
  cost[4,20,7] =  93;
  cost[4,21,7] =  16;
  cost[5,0,7] =  294;
  cost[5,1,7] =  144;
  cost[5,2,7] =  139;
  cost[5,3,7] =  104;
  cost[5,4,7] =  167;
  cost[5,5,7] =  313;
  cost[5,6,7] =  0;
  cost[5,7,7] =  70;
  cost[5,8,7] =  365;
  cost[5,9,7] =  148;
  cost[5,10,7] =  66;
  cost[5,11,7] =  281;
  cost[5,12,7] =  412;
  cost[5,13,7] =  478;
  cost[5,14,7] =  303;
  cost[5,15,7] =  340;
  cost[5,16,7] =  194;
  cost[5,17,7] =  174;
  cost[5,18,7] =  468;
  cost[5,19,7] =  29;
  cost[5,20,7] =  4;
  cost[5,21,7] =  5;
  cost[6,0,7] =  396;
  cost[6,1,7] =  18;
  cost[6,2,7] =  260;
  cost[6,3,7] =  149;
  cost[6,4,7] =  456;
  cost[6,5,7] =  20;
  cost[6,6,7] =  70;
  cost[6,7,7] =  0;
  cost[6,8,7] =  429;
  cost[6,9,7] =  363;
  cost[6,10,7] =  284;
  cost[6,11,7] =  124;
  cost[6,12,7] =  111;
  cost[6,13,7] =  198;
  cost[6,14,7] =  27;
  cost[6,15,7] =  232;
  cost[6,16,7] =  120;
  cost[6,17,7] =  97;
  cost[6,18,7] =  326;
  cost[6,19,7] =  137;
  cost[6,20,7] =  312;
  cost[6,21,7] =  76;
  cost[7,0,7] =  309;
  cost[7,1,7] =  85;
  cost[7,2,7] =  319;
  cost[7,3,7] =  271;
  cost[7,4,7] =  94;
  cost[7,5,7] =  332;
  cost[7,6,7] =  365;
  cost[7,7,7] =  429;
  cost[7,8,7] =  0;
  cost[7,9,7] =  225;
  cost[7,10,7] =  274;
  cost[7,11,7] =  476;
  cost[7,12,7] =  153;
  cost[7,13,7] =  268;
  cost[7,14,7] =  295;
  cost[7,15,7] =  10;
  cost[7,16,7] =  463;
  cost[7,17,7] =  470;
  cost[7,18,7] =  479;
  cost[7,19,7] =  8;
  cost[7,20,7] =  474;
  cost[7,21,7] =  0;
  cost[8,0,7] =  175;
  cost[8,1,7] =  357;
  cost[8,2,7] =  76;
  cost[8,3,7] =  334;
  cost[8,4,7] =  145;
  cost[8,5,7] =  433;
  cost[8,6,7] =  148;
  cost[8,7,7] =  363;
  cost[8,8,7] =  225;
  cost[8,9,7] =  0;
  cost[8,10,7] =  429;
  cost[8,11,7] =  250;
  cost[8,12,7] =  230;
  cost[8,13,7] =  70;
  cost[8,14,7] =  361;
  cost[8,15,7] =  428;
  cost[8,16,7] =  97;
  cost[8,17,7] =  109;
  cost[8,18,7] =  65;
  cost[8,19,7] =  194;
  cost[8,20,7] =  435;
  cost[8,21,7] =  203;
  cost[9,0,7] =  184;
  cost[9,1,7] =  26;
  cost[9,2,7] =  170;
  cost[9,3,7] =  199;
  cost[9,4,7] =  140;
  cost[9,5,7] =  424;
  cost[9,6,7] =  66;
  cost[9,7,7] =  284;
  cost[9,8,7] =  274;
  cost[9,9,7] =  429;
  cost[9,10,7] =  0;
  cost[9,11,7] =  411;
  cost[9,12,7] =  218;
  cost[9,13,7] =  253;
  cost[9,14,7] =  201;
  cost[9,15,7] =  210;
  cost[9,16,7] =  407;
  cost[9,17,7] =  470;
  cost[9,18,7] =  22;
  cost[9,19,7] =  418;
  cost[9,20,7] =  450;
  cost[9,21,7] =  8;
  cost[10,0,7] =  358;
  cost[10,1,7] =  89;
  cost[10,2,7] =  452;
  cost[10,3,7] =  118;
  cost[10,4,7] =  53;
  cost[10,5,7] =  1;
  cost[10,6,7] =  281;
  cost[10,7,7] =  124;
  cost[10,8,7] =  476;
  cost[10,9,7] =  250;
  cost[10,10,7] =  411;
  cost[10,11,7] =  0;
  cost[10,12,7] =  483;
  cost[10,13,7] =  414;
  cost[10,14,7] =  345;
  cost[10,15,7] =  428;
  cost[10,16,7] =  360;
  cost[10,17,7] =  111;
  cost[10,18,7] =  175;
  cost[10,19,7] =  430;
  cost[10,20,7] =  472;
  cost[10,21,7] =  120;
  cost[11,0,7] =  244;
  cost[11,1,7] =  467;
  cost[11,2,7] =  143;
  cost[11,3,7] =  442;
  cost[11,4,7] =  149;
  cost[11,5,7] =  330;
  cost[11,6,7] =  412;
  cost[11,7,7] =  111;
  cost[11,8,7] =  153;
  cost[11,9,7] =  230;
  cost[11,10,7] =  218;
  cost[11,11,7] =  483;
  cost[11,12,7] =  0;
  cost[11,13,7] =  186;
  cost[11,14,7] =  238;
  cost[11,15,7] =  49;
  cost[11,16,7] =  389;
  cost[11,17,7] =  262;
  cost[11,18,7] =  77;
  cost[11,19,7] =  316;
  cost[11,20,7] =  480;
  cost[11,21,7] =  331;
  cost[12,0,7] =  242;
  cost[12,1,7] =  246;
  cost[12,2,7] =  425;
  cost[12,3,7] =  376;
  cost[12,4,7] =  398;
  cost[12,5,7] =  179;
  cost[12,6,7] =  478;
  cost[12,7,7] =  198;
  cost[12,8,7] =  268;
  cost[12,9,7] =  70;
  cost[12,10,7] =  253;
  cost[12,11,7] =  414;
  cost[12,12,7] =  186;
  cost[12,13,7] =  0;
  cost[12,14,7] =  255;
  cost[12,15,7] =  20;
  cost[12,16,7] =  229;
  cost[12,17,7] =  190;
  cost[12,18,7] =  470;
  cost[12,19,7] =  237;
  cost[12,20,7] =  120;
  cost[12,21,7] =  445;
  cost[13,0,7] =  226;
  cost[13,1,7] =  91;
  cost[13,2,7] =  443;
  cost[13,3,7] =  13;
  cost[13,4,7] =  480;
  cost[13,5,7] =  231;
  cost[13,6,7] =  303;
  cost[13,7,7] =  27;
  cost[13,8,7] =  295;
  cost[13,9,7] =  361;
  cost[13,10,7] =  201;
  cost[13,11,7] =  345;
  cost[13,12,7] =  238;
  cost[13,13,7] =  255;
  cost[13,14,7] =  0;
  cost[13,15,7] =  307;
  cost[13,16,7] =  181;
  cost[13,17,7] =  410;
  cost[13,18,7] =  418;
  cost[13,19,7] =  357;
  cost[13,20,7] =  357;
  cost[13,21,7] =  407;
  cost[14,0,7] =  121;
  cost[14,1,7] =  472;
  cost[14,2,7] =  83;
  cost[14,3,7] =  120;
  cost[14,4,7] =  400;
  cost[14,5,7] =  397;
  cost[14,6,7] =  340;
  cost[14,7,7] =  232;
  cost[14,8,7] =  10;
  cost[14,9,7] =  428;
  cost[14,10,7] =  210;
  cost[14,11,7] =  428;
  cost[14,12,7] =  49;
  cost[14,13,7] =  20;
  cost[14,14,7] =  307;
  cost[14,15,7] =  0;
  cost[14,16,7] =  21;
  cost[14,17,7] =  179;
  cost[14,18,7] =  155;
  cost[14,19,7] =  71;
  cost[14,20,7] =  85;
  cost[14,21,7] =  417;
  cost[15,0,7] =  469;
  cost[15,1,7] =  338;
  cost[15,2,7] =  85;
  cost[15,3,7] =  403;
  cost[15,4,7] =  263;
  cost[15,5,7] =  386;
  cost[15,6,7] =  194;
  cost[15,7,7] =  120;
  cost[15,8,7] =  463;
  cost[15,9,7] =  97;
  cost[15,10,7] =  407;
  cost[15,11,7] =  360;
  cost[15,12,7] =  389;
  cost[15,13,7] =  229;
  cost[15,14,7] =  181;
  cost[15,15,7] =  21;
  cost[15,16,7] =  0;
  cost[15,17,7] =  413;
  cost[15,18,7] =  481;
  cost[15,19,7] =  435;
  cost[15,20,7] =  136;
  cost[15,21,7] =  253;
  cost[16,0,7] =  328;
  cost[16,1,7] =  284;
  cost[16,2,7] =  462;
  cost[16,3,7] =  153;
  cost[16,4,7] =  412;
  cost[16,5,7] =  121;
  cost[16,6,7] =  174;
  cost[16,7,7] =  97;
  cost[16,8,7] =  470;
  cost[16,9,7] =  109;
  cost[16,10,7] =  470;
  cost[16,11,7] =  111;
  cost[16,12,7] =  262;
  cost[16,13,7] =  190;
  cost[16,14,7] =  410;
  cost[16,15,7] =  179;
  cost[16,16,7] =  413;
  cost[16,17,7] =  0;
  cost[16,18,7] =  443;
  cost[16,19,7] =  442;
  cost[16,20,7] =  119;
  cost[16,21,7] =  79;
  cost[17,0,7] =  104;
  cost[17,1,7] =  340;
  cost[17,2,7] =  168;
  cost[17,3,7] =  380;
  cost[17,4,7] =  21;
  cost[17,5,7] =  406;
  cost[17,6,7] =  468;
  cost[17,7,7] =  326;
  cost[17,8,7] =  479;
  cost[17,9,7] =  65;
  cost[17,10,7] =  22;
  cost[17,11,7] =  175;
  cost[17,12,7] =  77;
  cost[17,13,7] =  470;
  cost[17,14,7] =  418;
  cost[17,15,7] =  155;
  cost[17,16,7] =  481;
  cost[17,17,7] =  443;
  cost[17,18,7] =  0;
  cost[17,19,7] =  130;
  cost[17,20,7] =  227;
  cost[17,21,7] =  54;
  cost[18,0,7] =  113;
  cost[18,1,7] =  229;
  cost[18,2,7] =  442;
  cost[18,3,7] =  239;
  cost[18,4,7] =  412;
  cost[18,5,7] =  70;
  cost[18,6,7] =  29;
  cost[18,7,7] =  137;
  cost[18,8,7] =  8;
  cost[18,9,7] =  194;
  cost[18,10,7] =  418;
  cost[18,11,7] =  430;
  cost[18,12,7] =  316;
  cost[18,13,7] =  237;
  cost[18,14,7] =  357;
  cost[18,15,7] =  71;
  cost[18,16,7] =  435;
  cost[18,17,7] =  442;
  cost[18,18,7] =  130;
  cost[18,19,7] =  0;
  cost[18,20,7] =  411;
  cost[18,21,7] =  414;
  cost[19,0,7] =  457;
  cost[19,1,7] =  49;
  cost[19,2,7] =  4;
  cost[19,3,7] =  229;
  cost[19,4,7] =  200;
  cost[19,5,7] =  93;
  cost[19,6,7] =  4;
  cost[19,7,7] =  312;
  cost[19,8,7] =  474;
  cost[19,9,7] =  435;
  cost[19,10,7] =  450;
  cost[19,11,7] =  472;
  cost[19,12,7] =  480;
  cost[19,13,7] =  120;
  cost[19,14,7] =  357;
  cost[19,15,7] =  85;
  cost[19,16,7] =  136;
  cost[19,17,7] =  119;
  cost[19,18,7] =  227;
  cost[19,19,7] =  411;
  cost[19,20,7] =  0;
  cost[19,21,7] =  331;
  cost[20,0,7] =  455;
  cost[20,1,7] =  330;
  cost[20,2,7] =  257;
  cost[20,3,7] =  67;
  cost[20,4,7] =  355;
  cost[20,5,7] =  16;
  cost[20,6,7] =  5;
  cost[20,7,7] =  76;
  cost[20,8,7] =  0;
  cost[20,9,7] =  203;
  cost[20,10,7] =  8;
  cost[20,11,7] =  120;
  cost[20,12,7] =  331;
  cost[20,13,7] =  445;
  cost[20,14,7] =  407;
  cost[20,15,7] =  417;
  cost[20,16,7] =  253;
  cost[20,17,7] =  79;
  cost[20,18,7] =  54;
  cost[20,19,7] =  414;
  cost[20,20,7] =  331;
  cost[20,21,7] =  0;
  cost[21,0,7] =  399;
  cost[21,1,7] =  107;
  cost[21,2,7] =  426;
  cost[21,3,7] =  207;
  cost[21,4,7] =  127;
  cost[21,5,7] =  215;
  cost[21,6,7] =  361;
  cost[21,7,7] =  207;
  cost[21,8,7] =  370;
  cost[21,9,7] =  23;
  cost[21,10,7] =  413;
  cost[21,11,7] =  43;
  cost[21,12,7] =  33;
  cost[21,13,7] =  237;
  cost[21,14,7] =  477;
  cost[21,15,7] =  149;
  cost[21,16,7] =  455;
  cost[21,17,7] =  403;
  cost[21,18,7] =  56;
  cost[21,19,7] =  85;
  cost[21,20,7] =  107;
  cost[21,21,7] =  2;
  cost[0,0,8] =  0;
  cost[0,1,8] =  0;
  cost[0,2,8] =  420;
  cost[0,3,8] =  328;
  cost[0,4,8] =  103;
  cost[0,5,8] =  349;
  cost[0,6,8] =  325;
  cost[0,7,8] =  54;
  cost[0,8,8] =  2;
  cost[0,9,8] =  95;
  cost[0,10,8] =  26;
  cost[0,11,8] =  368;
  cost[0,12,8] =  54;
  cost[0,13,8] =  469;
  cost[0,14,8] =  3;
  cost[0,15,8] =  134;
  cost[0,16,8] =  389;
  cost[0,17,8] =  359;
  cost[0,18,8] =  264;
  cost[0,19,8] =  132;
  cost[0,20,8] =  414;
  cost[0,21,8] =  321;
  cost[1,0,8] =  277;
  cost[1,1,8] =  420;
  cost[1,2,8] =  0;
  cost[1,3,8] =  251;
  cost[1,4,8] =  379;
  cost[1,5,8] =  263;
  cost[1,6,8] =  98;
  cost[1,7,8] =  2;
  cost[1,8,8] =  363;
  cost[1,9,8] =  100;
  cost[1,10,8] =  181;
  cost[1,11,8] =  65;
  cost[1,12,8] =  36;
  cost[1,13,8] =  25;
  cost[1,14,8] =  168;
  cost[1,15,8] =  386;
  cost[1,16,8] =  351;
  cost[1,17,8] =  223;
  cost[1,18,8] =  389;
  cost[1,19,8] =  446;
  cost[1,20,8] =  250;
  cost[1,21,8] =  273;
  cost[2,0,8] =  409;
  cost[2,1,8] =  328;
  cost[2,2,8] =  251;
  cost[2,3,8] =  0;
  cost[2,4,8] =  276;
  cost[2,5,8] =  151;
  cost[2,6,8] =  141;
  cost[2,7,8] =  152;
  cost[2,8,8] =  415;
  cost[2,9,8] =  273;
  cost[2,10,8] =  82;
  cost[2,11,8] =  253;
  cost[2,12,8] =  83;
  cost[2,13,8] =  424;
  cost[2,14,8] =  20;
  cost[2,15,8] =  462;
  cost[2,16,8] =  203;
  cost[2,17,8] =  118;
  cost[2,18,8] =  465;
  cost[2,19,8] =  83;
  cost[2,20,8] =  219;
  cost[2,21,8] =  163;
  cost[3,0,8] =  1;
  cost[3,1,8] =  103;
  cost[3,2,8] =  379;
  cost[3,3,8] =  276;
  cost[3,4,8] =  0;
  cost[3,5,8] =  188;
  cost[3,6,8] =  317;
  cost[3,7,8] =  159;
  cost[3,8,8] =  56;
  cost[3,9,8] =  57;
  cost[3,10,8] =  64;
  cost[3,11,8] =  18;
  cost[3,12,8] =  308;
  cost[3,13,8] =  337;
  cost[3,14,8] =  36;
  cost[3,15,8] =  60;
  cost[3,16,8] =  130;
  cost[3,17,8] =  187;
  cost[3,18,8] =  201;
  cost[3,19,8] =  282;
  cost[3,20,8] =  119;
  cost[3,21,8] =  474;
  cost[4,0,8] =  332;
  cost[4,1,8] =  349;
  cost[4,2,8] =  263;
  cost[4,3,8] =  151;
  cost[4,4,8] =  188;
  cost[4,5,8] =  0;
  cost[4,6,8] =  74;
  cost[4,7,8] =  306;
  cost[4,8,8] =  392;
  cost[4,9,8] =  53;
  cost[4,10,8] =  25;
  cost[4,11,8] =  27;
  cost[4,12,8] =  35;
  cost[4,13,8] =  109;
  cost[4,14,8] =  247;
  cost[4,15,8] =  198;
  cost[4,16,8] =  258;
  cost[4,17,8] =  19;
  cost[4,18,8] =  386;
  cost[4,19,8] =  92;
  cost[4,20,8] =  178;
  cost[4,21,8] =  443;
  cost[5,0,8] =  89;
  cost[5,1,8] =  325;
  cost[5,2,8] =  98;
  cost[5,3,8] =  141;
  cost[5,4,8] =  317;
  cost[5,5,8] =  74;
  cost[5,6,8] =  0;
  cost[5,7,8] =  462;
  cost[5,8,8] =  457;
  cost[5,9,8] =  96;
  cost[5,10,8] =  14;
  cost[5,11,8] =  33;
  cost[5,12,8] =  226;
  cost[5,13,8] =  201;
  cost[5,14,8] =  235;
  cost[5,15,8] =  24;
  cost[5,16,8] =  321;
  cost[5,17,8] =  226;
  cost[5,18,8] =  390;
  cost[5,19,8] =  209;
  cost[5,20,8] =  300;
  cost[5,21,8] =  212;
  cost[6,0,8] =  268;
  cost[6,1,8] =  54;
  cost[6,2,8] =  2;
  cost[6,3,8] =  152;
  cost[6,4,8] =  159;
  cost[6,5,8] =  306;
  cost[6,6,8] =  462;
  cost[6,7,8] =  0;
  cost[6,8,8] =  238;
  cost[6,9,8] =  145;
  cost[6,10,8] =  388;
  cost[6,11,8] =  348;
  cost[6,12,8] =  392;
  cost[6,13,8] =  102;
  cost[6,14,8] =  122;
  cost[6,15,8] =  411;
  cost[6,16,8] =  5;
  cost[6,17,8] =  214;
  cost[6,18,8] =  106;
  cost[6,19,8] =  449;
  cost[6,20,8] =  364;
  cost[6,21,8] =  349;
  cost[7,0,8] =  195;
  cost[7,1,8] =  2;
  cost[7,2,8] =  363;
  cost[7,3,8] =  415;
  cost[7,4,8] =  56;
  cost[7,5,8] =  392;
  cost[7,6,8] =  457;
  cost[7,7,8] =  238;
  cost[7,8,8] =  0;
  cost[7,9,8] =  445;
  cost[7,10,8] =  441;
  cost[7,11,8] =  371;
  cost[7,12,8] =  187;
  cost[7,13,8] =  159;
  cost[7,14,8] =  123;
  cost[7,15,8] =  212;
  cost[7,16,8] =  480;
  cost[7,17,8] =  349;
  cost[7,18,8] =  119;
  cost[7,19,8] =  206;
  cost[7,20,8] =  165;
  cost[7,21,8] =  331;
  cost[8,0,8] =  54;
  cost[8,1,8] =  95;
  cost[8,2,8] =  100;
  cost[8,3,8] =  273;
  cost[8,4,8] =  57;
  cost[8,5,8] =  53;
  cost[8,6,8] =  96;
  cost[8,7,8] =  145;
  cost[8,8,8] =  445;
  cost[8,9,8] =  0;
  cost[8,10,8] =  86;
  cost[8,11,8] =  469;
  cost[8,12,8] =  424;
  cost[8,13,8] =  434;
  cost[8,14,8] =  378;
  cost[8,15,8] =  43;
  cost[8,16,8] =  72;
  cost[8,17,8] =  306;
  cost[8,18,8] =  49;
  cost[8,19,8] =  287;
  cost[8,20,8] =  412;
  cost[8,21,8] =  14;
  cost[9,0,8] =  193;
  cost[9,1,8] =  26;
  cost[9,2,8] =  181;
  cost[9,3,8] =  82;
  cost[9,4,8] =  64;
  cost[9,5,8] =  25;
  cost[9,6,8] =  14;
  cost[9,7,8] =  388;
  cost[9,8,8] =  441;
  cost[9,9,8] =  86;
  cost[9,10,8] =  0;
  cost[9,11,8] =  442;
  cost[9,12,8] =  21;
  cost[9,13,8] =  239;
  cost[9,14,8] =  399;
  cost[9,15,8] =  393;
  cost[9,16,8] =  427;
  cost[9,17,8] =  75;
  cost[9,18,8] =  32;
  cost[9,19,8] =  155;
  cost[9,20,8] =  72;
  cost[9,21,8] =  382;
  cost[10,0,8] =  356;
  cost[10,1,8] =  368;
  cost[10,2,8] =  65;
  cost[10,3,8] =  253;
  cost[10,4,8] =  18;
  cost[10,5,8] =  27;
  cost[10,6,8] =  33;
  cost[10,7,8] =  348;
  cost[10,8,8] =  371;
  cost[10,9,8] =  469;
  cost[10,10,8] =  442;
  cost[10,11,8] =  0;
  cost[10,12,8] =  63;
  cost[10,13,8] =  123;
  cost[10,14,8] =  119;
  cost[10,15,8] =  99;
  cost[10,16,8] =  209;
  cost[10,17,8] =  105;
  cost[10,18,8] =  39;
  cost[10,19,8] =  160;
  cost[10,20,8] =  483;
  cost[10,21,8] =  82;
  cost[11,0,8] =  36;
  cost[11,1,8] =  54;
  cost[11,2,8] =  36;
  cost[11,3,8] =  83;
  cost[11,4,8] =  308;
  cost[11,5,8] =  35;
  cost[11,6,8] =  226;
  cost[11,7,8] =  392;
  cost[11,8,8] =  187;
  cost[11,9,8] =  424;
  cost[11,10,8] =  21;
  cost[11,11,8] =  63;
  cost[11,12,8] =  0;
  cost[11,13,8] =  131;
  cost[11,14,8] =  36;
  cost[11,15,8] =  233;
  cost[11,16,8] =  146;
  cost[11,17,8] =  204;
  cost[11,18,8] =  27;
  cost[11,19,8] =  104;
  cost[11,20,8] =  226;
  cost[11,21,8] =  267;
  cost[12,0,8] =  137;
  cost[12,1,8] =  469;
  cost[12,2,8] =  25;
  cost[12,3,8] =  424;
  cost[12,4,8] =  337;
  cost[12,5,8] =  109;
  cost[12,6,8] =  201;
  cost[12,7,8] =  102;
  cost[12,8,8] =  159;
  cost[12,9,8] =  434;
  cost[12,10,8] =  239;
  cost[12,11,8] =  123;
  cost[12,12,8] =  131;
  cost[12,13,8] =  0;
  cost[12,14,8] =  210;
  cost[12,15,8] =  95;
  cost[12,16,8] =  168;
  cost[12,17,8] =  365;
  cost[12,18,8] =  168;
  cost[12,19,8] =  66;
  cost[12,20,8] =  157;
  cost[12,21,8] =  447;
  cost[13,0,8] =  256;
  cost[13,1,8] =  3;
  cost[13,2,8] =  168;
  cost[13,3,8] =  20;
  cost[13,4,8] =  36;
  cost[13,5,8] =  247;
  cost[13,6,8] =  235;
  cost[13,7,8] =  122;
  cost[13,8,8] =  123;
  cost[13,9,8] =  378;
  cost[13,10,8] =  399;
  cost[13,11,8] =  119;
  cost[13,12,8] =  36;
  cost[13,13,8] =  210;
  cost[13,14,8] =  0;
  cost[13,15,8] =  83;
  cost[13,16,8] =  229;
  cost[13,17,8] =  5;
  cost[13,18,8] =  188;
  cost[13,19,8] =  268;
  cost[13,20,8] =  165;
  cost[13,21,8] =  187;
  cost[14,0,8] =  82;
  cost[14,1,8] =  134;
  cost[14,2,8] =  386;
  cost[14,3,8] =  462;
  cost[14,4,8] =  60;
  cost[14,5,8] =  198;
  cost[14,6,8] =  24;
  cost[14,7,8] =  411;
  cost[14,8,8] =  212;
  cost[14,9,8] =  43;
  cost[14,10,8] =  393;
  cost[14,11,8] =  99;
  cost[14,12,8] =  233;
  cost[14,13,8] =  95;
  cost[14,14,8] =  83;
  cost[14,15,8] =  0;
  cost[14,16,8] =  9;
  cost[14,17,8] =  482;
  cost[14,18,8] =  435;
  cost[14,19,8] =  243;
  cost[14,20,8] =  145;
  cost[14,21,8] =  156;
  cost[15,0,8] =  48;
  cost[15,1,8] =  389;
  cost[15,2,8] =  351;
  cost[15,3,8] =  203;
  cost[15,4,8] =  130;
  cost[15,5,8] =  258;
  cost[15,6,8] =  321;
  cost[15,7,8] =  5;
  cost[15,8,8] =  480;
  cost[15,9,8] =  72;
  cost[15,10,8] =  427;
  cost[15,11,8] =  209;
  cost[15,12,8] =  146;
  cost[15,13,8] =  168;
  cost[15,14,8] =  229;
  cost[15,15,8] =  9;
  cost[15,16,8] =  0;
  cost[15,17,8] =  382;
  cost[15,18,8] =  53;
  cost[15,19,8] =  269;
  cost[15,20,8] =  34;
  cost[15,21,8] =  264;
  cost[16,0,8] =  201;
  cost[16,1,8] =  359;
  cost[16,2,8] =  223;
  cost[16,3,8] =  118;
  cost[16,4,8] =  187;
  cost[16,5,8] =  19;
  cost[16,6,8] =  226;
  cost[16,7,8] =  214;
  cost[16,8,8] =  349;
  cost[16,9,8] =  306;
  cost[16,10,8] =  75;
  cost[16,11,8] =  105;
  cost[16,12,8] =  204;
  cost[16,13,8] =  365;
  cost[16,14,8] =  5;
  cost[16,15,8] =  482;
  cost[16,16,8] =  382;
  cost[16,17,8] =  0;
  cost[16,18,8] =  146;
  cost[16,19,8] =  50;
  cost[16,20,8] =  269;
  cost[16,21,8] =  303;
  cost[17,0,8] =  438;
  cost[17,1,8] =  264;
  cost[17,2,8] =  389;
  cost[17,3,8] =  465;
  cost[17,4,8] =  201;
  cost[17,5,8] =  386;
  cost[17,6,8] =  390;
  cost[17,7,8] =  106;
  cost[17,8,8] =  119;
  cost[17,9,8] =  49;
  cost[17,10,8] =  32;
  cost[17,11,8] =  39;
  cost[17,12,8] =  27;
  cost[17,13,8] =  168;
  cost[17,14,8] =  188;
  cost[17,15,8] =  435;
  cost[17,16,8] =  53;
  cost[17,17,8] =  146;
  cost[17,18,8] =  0;
  cost[17,19,8] =  99;
  cost[17,20,8] =  97;
  cost[17,21,8] =  145;
  cost[18,0,8] =  408;
  cost[18,1,8] =  132;
  cost[18,2,8] =  446;
  cost[18,3,8] =  83;
  cost[18,4,8] =  282;
  cost[18,5,8] =  92;
  cost[18,6,8] =  209;
  cost[18,7,8] =  449;
  cost[18,8,8] =  206;
  cost[18,9,8] =  287;
  cost[18,10,8] =  155;
  cost[18,11,8] =  160;
  cost[18,12,8] =  104;
  cost[18,13,8] =  66;
  cost[18,14,8] =  268;
  cost[18,15,8] =  243;
  cost[18,16,8] =  269;
  cost[18,17,8] =  50;
  cost[18,18,8] =  99;
  cost[18,19,8] =  0;
  cost[18,20,8] =  414;
  cost[18,21,8] =  270;
  cost[19,0,8] =  69;
  cost[19,1,8] =  414;
  cost[19,2,8] =  250;
  cost[19,3,8] =  219;
  cost[19,4,8] =  119;
  cost[19,5,8] =  178;
  cost[19,6,8] =  300;
  cost[19,7,8] =  364;
  cost[19,8,8] =  165;
  cost[19,9,8] =  412;
  cost[19,10,8] =  72;
  cost[19,11,8] =  483;
  cost[19,12,8] =  226;
  cost[19,13,8] =  157;
  cost[19,14,8] =  165;
  cost[19,15,8] =  145;
  cost[19,16,8] =  34;
  cost[19,17,8] =  269;
  cost[19,18,8] =  97;
  cost[19,19,8] =  414;
  cost[19,20,8] =  0;
  cost[19,21,8] =  185;
  cost[20,0,8] =  308;
  cost[20,1,8] =  321;
  cost[20,2,8] =  273;
  cost[20,3,8] =  163;
  cost[20,4,8] =  474;
  cost[20,5,8] =  443;
  cost[20,6,8] =  212;
  cost[20,7,8] =  349;
  cost[20,8,8] =  331;
  cost[20,9,8] =  14;
  cost[20,10,8] =  382;
  cost[20,11,8] =  82;
  cost[20,12,8] =  267;
  cost[20,13,8] =  447;
  cost[20,14,8] =  187;
  cost[20,15,8] =  156;
  cost[20,16,8] =  264;
  cost[20,17,8] =  303;
  cost[20,18,8] =  145;
  cost[20,19,8] =  270;
  cost[20,20,8] =  185;
  cost[20,21,8] =  0;
  cost[21,0,8] =  239;
  cost[21,1,8] =  294;
  cost[21,2,8] =  17;
  cost[21,3,8] =  148;
  cost[21,4,8] =  365;
  cost[21,5,8] =  149;
  cost[21,6,8] =  118;
  cost[21,7,8] =  427;
  cost[21,8,8] =  324;
  cost[21,9,8] =  167;
  cost[21,10,8] =  275;
  cost[21,11,8] =  233;
  cost[21,12,8] =  20;
  cost[21,13,8] =  130;
  cost[21,14,8] =  351;
  cost[21,15,8] =  270;
  cost[21,16,8] =  365;
  cost[21,17,8] =  14;
  cost[21,18,8] =  104;
  cost[21,19,8] =  473;
  cost[21,20,8] =  483;
  cost[21,21,8] =  137;
  cost[0,0,9] =  0;
  cost[0,1,9] =  0;
  cost[0,2,9] =  293;
  cost[0,3,9] =  29;
  cost[0,4,9] =  191;
  cost[0,5,9] =  191;
  cost[0,6,9] =  83;
  cost[0,7,9] =  460;
  cost[0,8,9] =  225;
  cost[0,9,9] =  347;
  cost[0,10,9] =  342;
  cost[0,11,9] =  428;
  cost[0,12,9] =  9;
  cost[0,13,9] =  392;
  cost[0,14,9] =  214;
  cost[0,15,9] =  312;
  cost[0,16,9] =  406;
  cost[0,17,9] =  131;
  cost[0,18,9] =  411;
  cost[0,19,9] =  19;
  cost[0,20,9] =  277;
  cost[0,21,9] =  32;
  cost[1,0,9] =  173;
  cost[1,1,9] =  293;
  cost[1,2,9] =  0;
  cost[1,3,9] =  303;
  cost[1,4,9] =  295;
  cost[1,5,9] =  5;
  cost[1,6,9] =  4;
  cost[1,7,9] =  294;
  cost[1,8,9] =  286;
  cost[1,9,9] =  142;
  cost[1,10,9] =  53;
  cost[1,11,9] =  228;
  cost[1,12,9] =  435;
  cost[1,13,9] =  82;
  cost[1,14,9] =  419;
  cost[1,15,9] =  142;
  cost[1,16,9] =  165;
  cost[1,17,9] =  396;
  cost[1,18,9] =  368;
  cost[1,19,9] =  29;
  cost[1,20,9] =  254;
  cost[1,21,9] =  313;
  cost[2,0,9] =  45;
  cost[2,1,9] =  29;
  cost[2,2,9] =  303;
  cost[2,3,9] =  0;
  cost[2,4,9] =  44;
  cost[2,5,9] =  351;
  cost[2,6,9] =  84;
  cost[2,7,9] =  175;
  cost[2,8,9] =  279;
  cost[2,9,9] =  104;
  cost[2,10,9] =  453;
  cost[2,11,9] =  311;
  cost[2,12,9] =  410;
  cost[2,13,9] =  176;
  cost[2,14,9] =  131;
  cost[2,15,9] =  221;
  cost[2,16,9] =  182;
  cost[2,17,9] =  135;
  cost[2,18,9] =  32;
  cost[2,19,9] =  468;
  cost[2,20,9] =  278;
  cost[2,21,9] =  85;
  cost[3,0,9] =  23;
  cost[3,1,9] =  191;
  cost[3,2,9] =  295;
  cost[3,3,9] =  44;
  cost[3,4,9] =  0;
  cost[3,5,9] =  168;
  cost[3,6,9] =  148;
  cost[3,7,9] =  372;
  cost[3,8,9] =  334;
  cost[3,9,9] =  60;
  cost[3,10,9] =  257;
  cost[3,11,9] =  363;
  cost[3,12,9] =  314;
  cost[3,13,9] =  87;
  cost[3,14,9] =  402;
  cost[3,15,9] =  476;
  cost[3,16,9] =  131;
  cost[3,17,9] =  269;
  cost[3,18,9] =  77;
  cost[3,19,9] =  307;
  cost[3,20,9] =  64;
  cost[3,21,9] =  182;
  cost[4,0,9] =  267;
  cost[4,1,9] =  191;
  cost[4,2,9] =  5;
  cost[4,3,9] =  351;
  cost[4,4,9] =  168;
  cost[4,5,9] =  0;
  cost[4,6,9] =  108;
  cost[4,7,9] =  453;
  cost[4,8,9] =  23;
  cost[4,9,9] =  330;
  cost[4,10,9] =  151;
  cost[4,11,9] =  159;
  cost[4,12,9] =  363;
  cost[4,13,9] =  136;
  cost[4,14,9] =  437;
  cost[4,15,9] =  448;
  cost[4,16,9] =  348;
  cost[4,17,9] =  183;
  cost[4,18,9] =  133;
  cost[4,19,9] =  13;
  cost[4,20,9] =  71;
  cost[4,21,9] =  467;
  cost[5,0,9] =  287;
  cost[5,1,9] =  83;
  cost[5,2,9] =  4;
  cost[5,3,9] =  84;
  cost[5,4,9] =  148;
  cost[5,5,9] =  108;
  cost[5,6,9] =  0;
  cost[5,7,9] =  346;
  cost[5,8,9] =  387;
  cost[5,9,9] =  415;
  cost[5,10,9] =  265;
  cost[5,11,9] =  380;
  cost[5,12,9] =  63;
  cost[5,13,9] =  50;
  cost[5,14,9] =  458;
  cost[5,15,9] =  371;
  cost[5,16,9] =  115;
  cost[5,17,9] =  156;
  cost[5,18,9] =  163;
  cost[5,19,9] =  8;
  cost[5,20,9] =  264;
  cost[5,21,9] =  133;
  cost[6,0,9] =  351;
  cost[6,1,9] =  460;
  cost[6,2,9] =  294;
  cost[6,3,9] =  175;
  cost[6,4,9] =  372;
  cost[6,5,9] =  453;
  cost[6,6,9] =  346;
  cost[6,7,9] =  0;
  cost[6,8,9] =  284;
  cost[6,9,9] =  191;
  cost[6,10,9] =  474;
  cost[6,11,9] =  420;
  cost[6,12,9] =  144;
  cost[6,13,9] =  439;
  cost[6,14,9] =  285;
  cost[6,15,9] =  327;
  cost[6,16,9] =  88;
  cost[6,17,9] =  298;
  cost[6,18,9] =  399;
  cost[6,19,9] =  72;
  cost[6,20,9] =  372;
  cost[6,21,9] =  244;
  cost[7,0,9] =  308;
  cost[7,1,9] =  225;
  cost[7,2,9] =  286;
  cost[7,3,9] =  279;
  cost[7,4,9] =  334;
  cost[7,5,9] =  23;
  cost[7,6,9] =  387;
  cost[7,7,9] =  284;
  cost[7,8,9] =  0;
  cost[7,9,9] =  176;
  cost[7,10,9] =  200;
  cost[7,11,9] =  172;
  cost[7,12,9] =  240;
  cost[7,13,9] =  251;
  cost[7,14,9] =  146;
  cost[7,15,9] =  127;
  cost[7,16,9] =  366;
  cost[7,17,9] =  303;
  cost[7,18,9] =  291;
  cost[7,19,9] =  374;
  cost[7,20,9] =  83;
  cost[7,21,9] =  424;
  cost[8,0,9] =  375;
  cost[8,1,9] =  347;
  cost[8,2,9] =  142;
  cost[8,3,9] =  104;
  cost[8,4,9] =  60;
  cost[8,5,9] =  330;
  cost[8,6,9] =  415;
  cost[8,7,9] =  191;
  cost[8,8,9] =  176;
  cost[8,9,9] =  0;
  cost[8,10,9] =  225;
  cost[8,11,9] =  113;
  cost[8,12,9] =  185;
  cost[8,13,9] =  161;
  cost[8,14,9] =  257;
  cost[8,15,9] =  141;
  cost[8,16,9] =  447;
  cost[8,17,9] =  101;
  cost[8,18,9] =  229;
  cost[8,19,9] =  262;
  cost[8,20,9] =  17;
  cost[8,21,9] =  301;
  cost[9,0,9] =  73;
  cost[9,1,9] =  342;
  cost[9,2,9] =  53;
  cost[9,3,9] =  453;
  cost[9,4,9] =  257;
  cost[9,5,9] =  151;
  cost[9,6,9] =  265;
  cost[9,7,9] =  474;
  cost[9,8,9] =  200;
  cost[9,9,9] =  225;
  cost[9,10,9] =  0;
  cost[9,11,9] =  237;
  cost[9,12,9] =  427;
  cost[9,13,9] =  438;
  cost[9,14,9] =  437;
  cost[9,15,9] =  115;
  cost[9,16,9] =  194;
  cost[9,17,9] =  204;
  cost[9,18,9] =  262;
  cost[9,19,9] =  321;
  cost[9,20,9] =  86;
  cost[9,21,9] =  82;
  cost[10,0,9] =  331;
  cost[10,1,9] =  428;
  cost[10,2,9] =  228;
  cost[10,3,9] =  311;
  cost[10,4,9] =  363;
  cost[10,5,9] =  159;
  cost[10,6,9] =  380;
  cost[10,7,9] =  420;
  cost[10,8,9] =  172;
  cost[10,9,9] =  113;
  cost[10,10,9] =  237;
  cost[10,11,9] =  0;
  cost[10,12,9] =  166;
  cost[10,13,9] =  69;
  cost[10,14,9] =  383;
  cost[10,15,9] =  361;
  cost[10,16,9] =  294;
  cost[10,17,9] =  12;
  cost[10,18,9] =  62;
  cost[10,19,9] =  456;
  cost[10,20,9] =  270;
  cost[10,21,9] =  203;
  cost[11,0,9] =  39;
  cost[11,1,9] =  9;
  cost[11,2,9] =  435;
  cost[11,3,9] =  410;
  cost[11,4,9] =  314;
  cost[11,5,9] =  363;
  cost[11,6,9] =  63;
  cost[11,7,9] =  144;
  cost[11,8,9] =  240;
  cost[11,9,9] =  185;
  cost[11,10,9] =  427;
  cost[11,11,9] =  166;
  cost[11,12,9] =  0;
  cost[11,13,9] =  433;
  cost[11,14,9] =  198;
  cost[11,15,9] =  389;
  cost[11,16,9] =  251;
  cost[11,17,9] =  349;
  cost[11,18,9] =  167;
  cost[11,19,9] =  4;
  cost[11,20,9] =  293;
  cost[11,21,9] =  121;
  cost[12,0,9] =  474;
  cost[12,1,9] =  392;
  cost[12,2,9] =  82;
  cost[12,3,9] =  176;
  cost[12,4,9] =  87;
  cost[12,5,9] =  136;
  cost[12,6,9] =  50;
  cost[12,7,9] =  439;
  cost[12,8,9] =  251;
  cost[12,9,9] =  161;
  cost[12,10,9] =  438;
  cost[12,11,9] =  69;
  cost[12,12,9] =  433;
  cost[12,13,9] =  0;
  cost[12,14,9] =  316;
  cost[12,15,9] =  162;
  cost[12,16,9] =  188;
  cost[12,17,9] =  153;
  cost[12,18,9] =  248;
  cost[12,19,9] =  270;
  cost[12,20,9] =  282;
  cost[12,21,9] =  226;
  cost[13,0,9] =  277;
  cost[13,1,9] =  214;
  cost[13,2,9] =  419;
  cost[13,3,9] =  131;
  cost[13,4,9] =  402;
  cost[13,5,9] =  437;
  cost[13,6,9] =  458;
  cost[13,7,9] =  285;
  cost[13,8,9] =  146;
  cost[13,9,9] =  257;
  cost[13,10,9] =  437;
  cost[13,11,9] =  383;
  cost[13,12,9] =  198;
  cost[13,13,9] =  316;
  cost[13,14,9] =  0;
  cost[13,15,9] =  125;
  cost[13,16,9] =  313;
  cost[13,17,9] =  162;
  cost[13,18,9] =  138;
  cost[13,19,9] =  376;
  cost[13,20,9] =  135;
  cost[13,21,9] =  408;
  cost[14,0,9] =  65;
  cost[14,1,9] =  312;
  cost[14,2,9] =  142;
  cost[14,3,9] =  221;
  cost[14,4,9] =  476;
  cost[14,5,9] =  448;
  cost[14,6,9] =  371;
  cost[14,7,9] =  327;
  cost[14,8,9] =  127;
  cost[14,9,9] =  141;
  cost[14,10,9] =  115;
  cost[14,11,9] =  361;
  cost[14,12,9] =  389;
  cost[14,13,9] =  162;
  cost[14,14,9] =  125;
  cost[14,15,9] =  0;
  cost[14,16,9] =  297;
  cost[14,17,9] =  45;
  cost[14,18,9] =  270;
  cost[14,19,9] =  202;
  cost[14,20,9] =  297;
  cost[14,21,9] =  136;
  cost[15,0,9] =  15;
  cost[15,1,9] =  406;
  cost[15,2,9] =  165;
  cost[15,3,9] =  182;
  cost[15,4,9] =  131;
  cost[15,5,9] =  348;
  cost[15,6,9] =  115;
  cost[15,7,9] =  88;
  cost[15,8,9] =  366;
  cost[15,9,9] =  447;
  cost[15,10,9] =  194;
  cost[15,11,9] =  294;
  cost[15,12,9] =  251;
  cost[15,13,9] =  188;
  cost[15,14,9] =  313;
  cost[15,15,9] =  297;
  cost[15,16,9] =  0;
  cost[15,17,9] =  429;
  cost[15,18,9] =  8;
  cost[15,19,9] =  259;
  cost[15,20,9] =  354;
  cost[15,21,9] =  324;
  cost[16,0,9] =  217;
  cost[16,1,9] =  131;
  cost[16,2,9] =  396;
  cost[16,3,9] =  135;
  cost[16,4,9] =  269;
  cost[16,5,9] =  183;
  cost[16,6,9] =  156;
  cost[16,7,9] =  298;
  cost[16,8,9] =  303;
  cost[16,9,9] =  101;
  cost[16,10,9] =  204;
  cost[16,11,9] =  12;
  cost[16,12,9] =  349;
  cost[16,13,9] =  153;
  cost[16,14,9] =  162;
  cost[16,15,9] =  45;
  cost[16,16,9] =  429;
  cost[16,17,9] =  0;
  cost[16,18,9] =  478;
  cost[16,19,9] =  186;
  cost[16,20,9] =  328;
  cost[16,21,9] =  277;
  cost[17,0,9] =  347;
  cost[17,1,9] =  411;
  cost[17,2,9] =  368;
  cost[17,3,9] =  32;
  cost[17,4,9] =  77;
  cost[17,5,9] =  133;
  cost[17,6,9] =  163;
  cost[17,7,9] =  399;
  cost[17,8,9] =  291;
  cost[17,9,9] =  229;
  cost[17,10,9] =  262;
  cost[17,11,9] =  62;
  cost[17,12,9] =  167;
  cost[17,13,9] =  248;
  cost[17,14,9] =  138;
  cost[17,15,9] =  270;
  cost[17,16,9] =  8;
  cost[17,17,9] =  478;
  cost[17,18,9] =  0;
  cost[17,19,9] =  145;
  cost[17,20,9] =  54;
  cost[17,21,9] =  110;
  cost[18,0,9] =  394;
  cost[18,1,9] =  19;
  cost[18,2,9] =  29;
  cost[18,3,9] =  468;
  cost[18,4,9] =  307;
  cost[18,5,9] =  13;
  cost[18,6,9] =  8;
  cost[18,7,9] =  72;
  cost[18,8,9] =  374;
  cost[18,9,9] =  262;
  cost[18,10,9] =  321;
  cost[18,11,9] =  456;
  cost[18,12,9] =  4;
  cost[18,13,9] =  270;
  cost[18,14,9] =  376;
  cost[18,15,9] =  202;
  cost[18,16,9] =  259;
  cost[18,17,9] =  186;
  cost[18,18,9] =  145;
  cost[18,19,9] =  0;
  cost[18,20,9] =  2;
  cost[18,21,9] =  443;
  cost[19,0,9] =  249;
  cost[19,1,9] =  277;
  cost[19,2,9] =  254;
  cost[19,3,9] =  278;
  cost[19,4,9] =  64;
  cost[19,5,9] =  71;
  cost[19,6,9] =  264;
  cost[19,7,9] =  372;
  cost[19,8,9] =  83;
  cost[19,9,9] =  17;
  cost[19,10,9] =  86;
  cost[19,11,9] =  270;
  cost[19,12,9] =  293;
  cost[19,13,9] =  282;
  cost[19,14,9] =  135;
  cost[19,15,9] =  297;
  cost[19,16,9] =  354;
  cost[19,17,9] =  328;
  cost[19,18,9] =  54;
  cost[19,19,9] =  2;
  cost[19,20,9] =  0;
  cost[19,21,9] =  31;
  cost[20,0,9] =  244;
  cost[20,1,9] =  32;
  cost[20,2,9] =  313;
  cost[20,3,9] =  85;
  cost[20,4,9] =  182;
  cost[20,5,9] =  467;
  cost[20,6,9] =  133;
  cost[20,7,9] =  244;
  cost[20,8,9] =  424;
  cost[20,9,9] =  301;
  cost[20,10,9] =  82;
  cost[20,11,9] =  203;
  cost[20,12,9] =  121;
  cost[20,13,9] =  226;
  cost[20,14,9] =  408;
  cost[20,15,9] =  136;
  cost[20,16,9] =  324;
  cost[20,17,9] =  277;
  cost[20,18,9] =  110;
  cost[20,19,9] =  443;
  cost[20,20,9] =  31;
  cost[20,21,9] =  0;
  cost[21,0,9] =  273;
  cost[21,1,9] =  305;
  cost[21,2,9] =  38;
  cost[21,3,9] =  212;
  cost[21,4,9] =  276;
  cost[21,5,9] =  73;
  cost[21,6,9] =  31;
  cost[21,7,9] =  419;
  cost[21,8,9] =  406;
  cost[21,9,9] =  151;
  cost[21,10,9] =  128;
  cost[21,11,9] =  420;
  cost[21,12,9] =  441;
  cost[21,13,9] =  436;
  cost[21,14,9] =  96;
  cost[21,15,9] =  370;
  cost[21,16,9] =  422;
  cost[21,17,9] =  413;
  cost[21,18,9] =  308;
  cost[21,19,9] =  117;
  cost[21,20,9] =  414;
  cost[21,21,9] =  301;
  cost[0,0,10] =  0;
  cost[0,1,10] =  0;
  cost[0,2,10] =  437;
  cost[0,3,10] =  20;
  cost[0,4,10] =  260;
  cost[0,5,10] =  383;
  cost[0,6,10] =  28;
  cost[0,7,10] =  36;
  cost[0,8,10] =  253;
  cost[0,9,10] =  353;
  cost[0,10,10] =  458;
  cost[0,11,10] =  312;
  cost[0,12,10] =  347;
  cost[0,13,10] =  161;
  cost[0,14,10] =  157;
  cost[0,15,10] =  141;
  cost[0,16,10] =  90;
  cost[0,17,10] =  438;
  cost[0,18,10] =  287;
  cost[0,19,10] =  144;
  cost[0,20,10] =  65;
  cost[0,21,10] =  112;
  cost[1,0,10] =  150;
  cost[1,1,10] =  437;
  cost[1,2,10] =  0;
  cost[1,3,10] =  72;
  cost[1,4,10] =  454;
  cost[1,5,10] =  166;
  cost[1,6,10] =  103;
  cost[1,7,10] =  385;
  cost[1,8,10] =  311;
  cost[1,9,10] =  404;
  cost[1,10,10] =  34;
  cost[1,11,10] =  269;
  cost[1,12,10] =  358;
  cost[1,13,10] =  55;
  cost[1,14,10] =  45;
  cost[1,15,10] =  258;
  cost[1,16,10] =  83;
  cost[1,17,10] =  81;
  cost[1,18,10] =  28;
  cost[1,19,10] =  437;
  cost[1,20,10] =  56;
  cost[1,21,10] =  340;
  cost[2,0,10] =  377;
  cost[2,1,10] =  20;
  cost[2,2,10] =  72;
  cost[2,3,10] =  0;
  cost[2,4,10] =  14;
  cost[2,5,10] =  442;
  cost[2,6,10] =  307;
  cost[2,7,10] =  452;
  cost[2,8,10] =  246;
  cost[2,9,10] =  451;
  cost[2,10,10] =  33;
  cost[2,11,10] =  358;
  cost[2,12,10] =  305;
  cost[2,13,10] =  101;
  cost[2,14,10] =  430;
  cost[2,15,10] =  275;
  cost[2,16,10] =  268;
  cost[2,17,10] =  49;
  cost[2,18,10] =  177;
  cost[2,19,10] =  95;
  cost[2,20,10] =  454;
  cost[2,21,10] =  212;
  cost[3,0,10] =  308;
  cost[3,1,10] =  260;
  cost[3,2,10] =  454;
  cost[3,3,10] =  14;
  cost[3,4,10] =  0;
  cost[3,5,10] =  267;
  cost[3,6,10] =  411;
  cost[3,7,10] =  103;
  cost[3,8,10] =  350;
  cost[3,9,10] =  9;
  cost[3,10,10] =  131;
  cost[3,11,10] =  303;
  cost[3,12,10] =  65;
  cost[3,13,10] =  472;
  cost[3,14,10] =  120;
  cost[3,15,10] =  282;
  cost[3,16,10] =  2;
  cost[3,17,10] =  79;
  cost[3,18,10] =  105;
  cost[3,19,10] =  455;
  cost[3,20,10] =  325;
  cost[3,21,10] =  73;
  cost[4,0,10] =  99;
  cost[4,1,10] =  383;
  cost[4,2,10] =  166;
  cost[4,3,10] =  442;
  cost[4,4,10] =  267;
  cost[4,5,10] =  0;
  cost[4,6,10] =  378;
  cost[4,7,10] =  106;
  cost[4,8,10] =  145;
  cost[4,9,10] =  169;
  cost[4,10,10] =  375;
  cost[4,11,10] =  195;
  cost[4,12,10] =  347;
  cost[4,13,10] =  470;
  cost[4,14,10] =  165;
  cost[4,15,10] =  75;
  cost[4,16,10] =  352;
  cost[4,17,10] =  10;
  cost[4,18,10] =  342;
  cost[4,19,10] =  279;
  cost[4,20,10] =  114;
  cost[4,21,10] =  209;
  cost[5,0,10] =  416;
  cost[5,1,10] =  28;
  cost[5,2,10] =  103;
  cost[5,3,10] =  307;
  cost[5,4,10] =  411;
  cost[5,5,10] =  378;
  cost[5,6,10] =  0;
  cost[5,7,10] =  29;
  cost[5,8,10] =  353;
  cost[5,9,10] =  234;
  cost[5,10,10] =  150;
  cost[5,11,10] =  151;
  cost[5,12,10] =  236;
  cost[5,13,10] =  229;
  cost[5,14,10] =  257;
  cost[5,15,10] =  208;
  cost[5,16,10] =  71;
  cost[5,17,10] =  330;
  cost[5,18,10] =  213;
  cost[5,19,10] =  270;
  cost[5,20,10] =  224;
  cost[5,21,10] =  320;
  cost[6,0,10] =  415;
  cost[6,1,10] =  36;
  cost[6,2,10] =  385;
  cost[6,3,10] =  452;
  cost[6,4,10] =  103;
  cost[6,5,10] =  106;
  cost[6,6,10] =  29;
  cost[6,7,10] =  0;
  cost[6,8,10] =  211;
  cost[6,9,10] =  127;
  cost[6,10,10] =  257;
  cost[6,11,10] =  198;
  cost[6,12,10] =  293;
  cost[6,13,10] =  332;
  cost[6,14,10] =  66;
  cost[6,15,10] =  304;
  cost[6,16,10] =  191;
  cost[6,17,10] =  346;
  cost[6,18,10] =  418;
  cost[6,19,10] =  400;
  cost[6,20,10] =  150;
  cost[6,21,10] =  180;
  cost[7,0,10] =  464;
  cost[7,1,10] =  253;
  cost[7,2,10] =  311;
  cost[7,3,10] =  246;
  cost[7,4,10] =  350;
  cost[7,5,10] =  145;
  cost[7,6,10] =  353;
  cost[7,7,10] =  211;
  cost[7,8,10] =  0;
  cost[7,9,10] =  414;
  cost[7,10,10] =  96;
  cost[7,11,10] =  171;
  cost[7,12,10] =  167;
  cost[7,13,10] =  326;
  cost[7,14,10] =  429;
  cost[7,15,10] =  375;
  cost[7,16,10] =  397;
  cost[7,17,10] =  275;
  cost[7,18,10] =  104;
  cost[7,19,10] =  184;
  cost[7,20,10] =  16;
  cost[7,21,10] =  425;
  cost[8,0,10] =  470;
  cost[8,1,10] =  353;
  cost[8,2,10] =  404;
  cost[8,3,10] =  451;
  cost[8,4,10] =  9;
  cost[8,5,10] =  169;
  cost[8,6,10] =  234;
  cost[8,7,10] =  127;
  cost[8,8,10] =  414;
  cost[8,9,10] =  0;
  cost[8,10,10] =  153;
  cost[8,11,10] =  244;
  cost[8,12,10] =  184;
  cost[8,13,10] =  351;
  cost[8,14,10] =  54;
  cost[8,15,10] =  33;
  cost[8,16,10] =  418;
  cost[8,17,10] =  358;
  cost[8,18,10] =  224;
  cost[8,19,10] =  280;
  cost[8,20,10] =  293;
  cost[8,21,10] =  141;
  cost[9,0,10] =  381;
  cost[9,1,10] =  458;
  cost[9,2,10] =  34;
  cost[9,3,10] =  33;
  cost[9,4,10] =  131;
  cost[9,5,10] =  375;
  cost[9,6,10] =  150;
  cost[9,7,10] =  257;
  cost[9,8,10] =  96;
  cost[9,9,10] =  153;
  cost[9,10,10] =  0;
  cost[9,11,10] =  87;
  cost[9,12,10] =  451;
  cost[9,13,10] =  404;
  cost[9,14,10] =  184;
  cost[9,15,10] =  139;
  cost[9,16,10] =  88;
  cost[9,17,10] =  26;
  cost[9,18,10] =  84;
  cost[9,19,10] =  463;
  cost[9,20,10] =  423;
  cost[9,21,10] =  359;
  cost[10,0,10] =  273;
  cost[10,1,10] =  312;
  cost[10,2,10] =  269;
  cost[10,3,10] =  358;
  cost[10,4,10] =  303;
  cost[10,5,10] =  195;
  cost[10,6,10] =  151;
  cost[10,7,10] =  198;
  cost[10,8,10] =  171;
  cost[10,9,10] =  244;
  cost[10,10,10] =  87;
  cost[10,11,10] =  0;
  cost[10,12,10] =  376;
  cost[10,13,10] =  26;
  cost[10,14,10] =  240;
  cost[10,15,10] =  302;
  cost[10,16,10] =  179;
  cost[10,17,10] =  1;
  cost[10,18,10] =  3;
  cost[10,19,10] =  46;
  cost[10,20,10] =  55;
  cost[10,21,10] =  36;
  cost[11,0,10] =  262;
  cost[11,1,10] =  347;
  cost[11,2,10] =  358;
  cost[11,3,10] =  305;
  cost[11,4,10] =  65;
  cost[11,5,10] =  347;
  cost[11,6,10] =  236;
  cost[11,7,10] =  293;
  cost[11,8,10] =  167;
  cost[11,9,10] =  184;
  cost[11,10,10] =  451;
  cost[11,11,10] =  376;
  cost[11,12,10] =  0;
  cost[11,13,10] =  261;
  cost[11,14,10] =  262;
  cost[11,15,10] =  223;
  cost[11,16,10] =  402;
  cost[11,17,10] =  209;
  cost[11,18,10] =  213;
  cost[11,19,10] =  6;
  cost[11,20,10] =  177;
  cost[11,21,10] =  134;
  cost[12,0,10] =  276;
  cost[12,1,10] =  161;
  cost[12,2,10] =  55;
  cost[12,3,10] =  101;
  cost[12,4,10] =  472;
  cost[12,5,10] =  470;
  cost[12,6,10] =  229;
  cost[12,7,10] =  332;
  cost[12,8,10] =  326;
  cost[12,9,10] =  351;
  cost[12,10,10] =  404;
  cost[12,11,10] =  26;
  cost[12,12,10] =  261;
  cost[12,13,10] =  0;
  cost[12,14,10] =  222;
  cost[12,15,10] =  217;
  cost[12,16,10] =  401;
  cost[12,17,10] =  202;
  cost[12,18,10] =  156;
  cost[12,19,10] =  277;
  cost[12,20,10] =  287;
  cost[12,21,10] =  280;
  cost[13,0,10] =  315;
  cost[13,1,10] =  157;
  cost[13,2,10] =  45;
  cost[13,3,10] =  430;
  cost[13,4,10] =  120;
  cost[13,5,10] =  165;
  cost[13,6,10] =  257;
  cost[13,7,10] =  66;
  cost[13,8,10] =  429;
  cost[13,9,10] =  54;
  cost[13,10,10] =  184;
  cost[13,11,10] =  240;
  cost[13,12,10] =  262;
  cost[13,13,10] =  222;
  cost[13,14,10] =  0;
  cost[13,15,10] =  37;
  cost[13,16,10] =  471;
  cost[13,17,10] =  8;
  cost[13,18,10] =  38;
  cost[13,19,10] =  475;
  cost[13,20,10] =  55;
  cost[13,21,10] =  94;
  cost[14,0,10] =  63;
  cost[14,1,10] =  141;
  cost[14,2,10] =  258;
  cost[14,3,10] =  275;
  cost[14,4,10] =  282;
  cost[14,5,10] =  75;
  cost[14,6,10] =  208;
  cost[14,7,10] =  304;
  cost[14,8,10] =  375;
  cost[14,9,10] =  33;
  cost[14,10,10] =  139;
  cost[14,11,10] =  302;
  cost[14,12,10] =  223;
  cost[14,13,10] =  217;
  cost[14,14,10] =  37;
  cost[14,15,10] =  0;
  cost[14,16,10] =  24;
  cost[14,17,10] =  288;
  cost[14,18,10] =  299;
  cost[14,19,10] =  247;
  cost[14,20,10] =  207;
  cost[14,21,10] =  25;
  cost[15,0,10] =  444;
  cost[15,1,10] =  90;
  cost[15,2,10] =  83;
  cost[15,3,10] =  268;
  cost[15,4,10] =  2;
  cost[15,5,10] =  352;
  cost[15,6,10] =  71;
  cost[15,7,10] =  191;
  cost[15,8,10] =  397;
  cost[15,9,10] =  418;
  cost[15,10,10] =  88;
  cost[15,11,10] =  179;
  cost[15,12,10] =  402;
  cost[15,13,10] =  401;
  cost[15,14,10] =  471;
  cost[15,15,10] =  24;
  cost[15,16,10] =  0;
  cost[15,17,10] =  202;
  cost[15,18,10] =  112;
  cost[15,19,10] =  405;
  cost[15,20,10] =  35;
  cost[15,21,10] =  335;
  cost[16,0,10] =  209;
  cost[16,1,10] =  438;
  cost[16,2,10] =  81;
  cost[16,3,10] =  49;
  cost[16,4,10] =  79;
  cost[16,5,10] =  10;
  cost[16,6,10] =  330;
  cost[16,7,10] =  346;
  cost[16,8,10] =  275;
  cost[16,9,10] =  358;
  cost[16,10,10] =  26;
  cost[16,11,10] =  1;
  cost[16,12,10] =  209;
  cost[16,13,10] =  202;
  cost[16,14,10] =  8;
  cost[16,15,10] =  288;
  cost[16,16,10] =  202;
  cost[16,17,10] =  0;
  cost[16,18,10] =  53;
  cost[16,19,10] =  295;
  cost[16,20,10] =  229;
  cost[16,21,10] =  341;
  cost[17,0,10] =  232;
  cost[17,1,10] =  287;
  cost[17,2,10] =  28;
  cost[17,3,10] =  177;
  cost[17,4,10] =  105;
  cost[17,5,10] =  342;
  cost[17,6,10] =  213;
  cost[17,7,10] =  418;
  cost[17,8,10] =  104;
  cost[17,9,10] =  224;
  cost[17,10,10] =  84;
  cost[17,11,10] =  3;
  cost[17,12,10] =  213;
  cost[17,13,10] =  156;
  cost[17,14,10] =  38;
  cost[17,15,10] =  299;
  cost[17,16,10] =  112;
  cost[17,17,10] =  53;
  cost[17,18,10] =  0;
  cost[17,19,10] =  170;
  cost[17,20,10] =  129;
  cost[17,21,10] =  386;
  cost[18,0,10] =  333;
  cost[18,1,10] =  144;
  cost[18,2,10] =  437;
  cost[18,3,10] =  95;
  cost[18,4,10] =  455;
  cost[18,5,10] =  279;
  cost[18,6,10] =  270;
  cost[18,7,10] =  400;
  cost[18,8,10] =  184;
  cost[18,9,10] =  280;
  cost[18,10,10] =  463;
  cost[18,11,10] =  46;
  cost[18,12,10] =  6;
  cost[18,13,10] =  277;
  cost[18,14,10] =  475;
  cost[18,15,10] =  247;
  cost[18,16,10] =  405;
  cost[18,17,10] =  295;
  cost[18,18,10] =  170;
  cost[18,19,10] =  0;
  cost[18,20,10] =  377;
  cost[18,21,10] =  234;
  cost[19,0,10] =  133;
  cost[19,1,10] =  65;
  cost[19,2,10] =  56;
  cost[19,3,10] =  454;
  cost[19,4,10] =  325;
  cost[19,5,10] =  114;
  cost[19,6,10] =  224;
  cost[19,7,10] =  150;
  cost[19,8,10] =  16;
  cost[19,9,10] =  293;
  cost[19,10,10] =  423;
  cost[19,11,10] =  55;
  cost[19,12,10] =  177;
  cost[19,13,10] =  287;
  cost[19,14,10] =  55;
  cost[19,15,10] =  207;
  cost[19,16,10] =  35;
  cost[19,17,10] =  229;
  cost[19,18,10] =  129;
  cost[19,19,10] =  377;
  cost[19,20,10] =  0;
  cost[19,21,10] =  271;
  cost[20,0,10] =  21;
  cost[20,1,10] =  112;
  cost[20,2,10] =  340;
  cost[20,3,10] =  212;
  cost[20,4,10] =  73;
  cost[20,5,10] =  209;
  cost[20,6,10] =  320;
  cost[20,7,10] =  180;
  cost[20,8,10] =  425;
  cost[20,9,10] =  141;
  cost[20,10,10] =  359;
  cost[20,11,10] =  36;
  cost[20,12,10] =  134;
  cost[20,13,10] =  280;
  cost[20,14,10] =  94;
  cost[20,15,10] =  25;
  cost[20,16,10] =  335;
  cost[20,17,10] =  341;
  cost[20,18,10] =  386;
  cost[20,19,10] =  234;
  cost[20,20,10] =  271;
  cost[20,21,10] =  0;
  cost[21,0,10] =  304;
  cost[21,1,10] =  337;
  cost[21,2,10] =  300;
  cost[21,3,10] =  365;
  cost[21,4,10] =  5;
  cost[21,5,10] =  288;
  cost[21,6,10] =  416;
  cost[21,7,10] =  430;
  cost[21,8,10] =  116;
  cost[21,9,10] =  431;
  cost[21,10,10] =  84;
  cost[21,11,10] =  465;
  cost[21,12,10] =  190;
  cost[21,13,10] =  169;
  cost[21,14,10] =  27;
  cost[21,15,10] =  461;
  cost[21,16,10] =  138;
  cost[21,17,10] =  92;
  cost[21,18,10] =  179;
  cost[21,19,10] =  262;
  cost[21,20,10] =  286;
  cost[21,21,10] =  87;
  cost[0,0,11] =  0;
  cost[0,1,11] =  0;
  cost[0,2,11] =  112;
  cost[0,3,11] =  28;
  cost[0,4,11] =  148;
  cost[0,5,11] =  315;
  cost[0,6,11] =  140;
  cost[0,7,11] =  70;
  cost[0,8,11] =  350;
  cost[0,9,11] =  475;
  cost[0,10,11] =  209;
  cost[0,11,11] =  303;
  cost[0,12,11] =  45;
  cost[0,13,11] =  20;
  cost[0,14,11] =  48;
  cost[0,15,11] =  386;
  cost[0,16,11] =  113;
  cost[0,17,11] =  447;
  cost[0,18,11] =  73;
  cost[0,19,11] =  242;
  cost[0,20,11] =  349;
  cost[0,21,11] =  252;
  cost[1,0,11] =  207;
  cost[1,1,11] =  112;
  cost[1,2,11] =  0;
  cost[1,3,11] =  3;
  cost[1,4,11] =  189;
  cost[1,5,11] =  164;
  cost[1,6,11] =  274;
  cost[1,7,11] =  476;
  cost[1,8,11] =  375;
  cost[1,9,11] =  362;
  cost[1,10,11] =  42;
  cost[1,11,11] =  309;
  cost[1,12,11] =  474;
  cost[1,13,11] =  70;
  cost[1,14,11] =  458;
  cost[1,15,11] =  306;
  cost[1,16,11] =  211;
  cost[1,17,11] =  44;
  cost[1,18,11] =  172;
  cost[1,19,11] =  203;
  cost[1,20,11] =  253;
  cost[1,21,11] =  475;
  cost[2,0,11] =  440;
  cost[2,1,11] =  28;
  cost[2,2,11] =  3;
  cost[2,3,11] =  0;
  cost[2,4,11] =  40;
  cost[2,5,11] =  152;
  cost[2,6,11] =  387;
  cost[2,7,11] =  3;
  cost[2,8,11] =  225;
  cost[2,9,11] =  146;
  cost[2,10,11] =  353;
  cost[2,11,11] =  478;
  cost[2,12,11] =  73;
  cost[2,13,11] =  113;
  cost[2,14,11] =  481;
  cost[2,15,11] =  263;
  cost[2,16,11] =  278;
  cost[2,17,11] =  272;
  cost[2,18,11] =  255;
  cost[2,19,11] =  169;
  cost[2,20,11] =  150;
  cost[2,21,11] =  298;
  cost[3,0,11] =  387;
  cost[3,1,11] =  148;
  cost[3,2,11] =  189;
  cost[3,3,11] =  40;
  cost[3,4,11] =  0;
  cost[3,5,11] =  369;
  cost[3,6,11] =  453;
  cost[3,7,11] =  447;
  cost[3,8,11] =  97;
  cost[3,9,11] =  13;
  cost[3,10,11] =  136;
  cost[3,11,11] =  300;
  cost[3,12,11] =  267;
  cost[3,13,11] =  128;
  cost[3,14,11] =  65;
  cost[3,15,11] =  57;
  cost[3,16,11] =  168;
  cost[3,17,11] =  217;
  cost[3,18,11] =  445;
  cost[3,19,11] =  172;
  cost[3,20,11] =  443;
  cost[3,21,11] =  107;
  cost[4,0,11] =  252;
  cost[4,1,11] =  315;
  cost[4,2,11] =  164;
  cost[4,3,11] =  152;
  cost[4,4,11] =  369;
  cost[4,5,11] =  0;
  cost[4,6,11] =  181;
  cost[4,7,11] =  154;
  cost[4,8,11] =  435;
  cost[4,9,11] =  444;
  cost[4,10,11] =  432;
  cost[4,11,11] =  223;
  cost[4,12,11] =  216;
  cost[4,13,11] =  118;
  cost[4,14,11] =  373;
  cost[4,15,11] =  31;
  cost[4,16,11] =  113;
  cost[4,17,11] =  30;
  cost[4,18,11] =  401;
  cost[4,19,11] =  82;
  cost[4,20,11] =  478;
  cost[4,21,11] =  14;
  cost[5,0,11] =  166;
  cost[5,1,11] =  140;
  cost[5,2,11] =  274;
  cost[5,3,11] =  387;
  cost[5,4,11] =  453;
  cost[5,5,11] =  181;
  cost[5,6,11] =  0;
  cost[5,7,11] =  315;
  cost[5,8,11] =  363;
  cost[5,9,11] =  258;
  cost[5,10,11] =  380;
  cost[5,11,11] =  421;
  cost[5,12,11] =  426;
  cost[5,13,11] =  114;
  cost[5,14,11] =  382;
  cost[5,15,11] =  115;
  cost[5,16,11] =  74;
  cost[5,17,11] =  5;
  cost[5,18,11] =  156;
  cost[5,19,11] =  27;
  cost[5,20,11] =  187;
  cost[5,21,11] =  311;
  cost[6,0,11] =  136;
  cost[6,1,11] =  70;
  cost[6,2,11] =  476;
  cost[6,3,11] =  3;
  cost[6,4,11] =  447;
  cost[6,5,11] =  154;
  cost[6,6,11] =  315;
  cost[6,7,11] =  0;
  cost[6,8,11] =  260;
  cost[6,9,11] =  202;
  cost[6,10,11] =  364;
  cost[6,11,11] =  379;
  cost[6,12,11] =  91;
  cost[6,13,11] =  396;
  cost[6,14,11] =  8;
  cost[6,15,11] =  122;
  cost[6,16,11] =  314;
  cost[6,17,11] =  90;
  cost[6,18,11] =  116;
  cost[6,19,11] =  328;
  cost[6,20,11] =  187;
  cost[6,21,11] =  246;
  cost[7,0,11] =  36;
  cost[7,1,11] =  350;
  cost[7,2,11] =  375;
  cost[7,3,11] =  225;
  cost[7,4,11] =  97;
  cost[7,5,11] =  435;
  cost[7,6,11] =  363;
  cost[7,7,11] =  260;
  cost[7,8,11] =  0;
  cost[7,9,11] =  21;
  cost[7,10,11] =  56;
  cost[7,11,11] =  3;
  cost[7,12,11] =  448;
  cost[7,13,11] =  171;
  cost[7,14,11] =  385;
  cost[7,15,11] =  79;
  cost[7,16,11] =  245;
  cost[7,17,11] =  391;
  cost[7,18,11] =  236;
  cost[7,19,11] =  273;
  cost[7,20,11] =  94;
  cost[7,21,11] =  64;
  cost[8,0,11] =  325;
  cost[8,1,11] =  475;
  cost[8,2,11] =  362;
  cost[8,3,11] =  146;
  cost[8,4,11] =  13;
  cost[8,5,11] =  444;
  cost[8,6,11] =  258;
  cost[8,7,11] =  202;
  cost[8,8,11] =  21;
  cost[8,9,11] =  0;
  cost[8,10,11] =  324;
  cost[8,11,11] =  454;
  cost[8,12,11] =  123;
  cost[8,13,11] =  220;
  cost[8,14,11] =  61;
  cost[8,15,11] =  35;
  cost[8,16,11] =  228;
  cost[8,17,11] =  184;
  cost[8,18,11] =  349;
  cost[8,19,11] =  319;
  cost[8,20,11] =  300;
  cost[8,21,11] =  194;
  cost[9,0,11] =  246;
  cost[9,1,11] =  209;
  cost[9,2,11] =  42;
  cost[9,3,11] =  353;
  cost[9,4,11] =  136;
  cost[9,5,11] =  432;
  cost[9,6,11] =  380;
  cost[9,7,11] =  364;
  cost[9,8,11] =  56;
  cost[9,9,11] =  324;
  cost[9,10,11] =  0;
  cost[9,11,11] =  354;
  cost[9,12,11] =  88;
  cost[9,13,11] =  84;
  cost[9,14,11] =  411;
  cost[9,15,11] =  92;
  cost[9,16,11] =  49;
  cost[9,17,11] =  98;
  cost[9,18,11] =  477;
  cost[9,19,11] =  128;
  cost[9,20,11] =  344;
  cost[9,21,11] =  385;
  cost[10,0,11] =  187;
  cost[10,1,11] =  303;
  cost[10,2,11] =  309;
  cost[10,3,11] =  478;
  cost[10,4,11] =  300;
  cost[10,5,11] =  223;
  cost[10,6,11] =  421;
  cost[10,7,11] =  379;
  cost[10,8,11] =  3;
  cost[10,9,11] =  454;
  cost[10,10,11] =  354;
  cost[10,11,11] =  0;
  cost[10,12,11] =  479;
  cost[10,13,11] =  428;
  cost[10,14,11] =  386;
  cost[10,15,11] =  237;
  cost[10,16,11] =  269;
  cost[10,17,11] =  356;
  cost[10,18,11] =  360;
  cost[10,19,11] =  5;
  cost[10,20,11] =  417;
  cost[10,21,11] =  396;
  cost[11,0,11] =  257;
  cost[11,1,11] =  45;
  cost[11,2,11] =  474;
  cost[11,3,11] =  73;
  cost[11,4,11] =  267;
  cost[11,5,11] =  216;
  cost[11,6,11] =  426;
  cost[11,7,11] =  91;
  cost[11,8,11] =  448;
  cost[11,9,11] =  123;
  cost[11,10,11] =  88;
  cost[11,11,11] =  479;
  cost[11,12,11] =  0;
  cost[11,13,11] =  262;
  cost[11,14,11] =  69;
  cost[11,15,11] =  419;
  cost[11,16,11] =  456;
  cost[11,17,11] =  91;
  cost[11,18,11] =  482;
  cost[11,19,11] =  327;
  cost[11,20,11] =  180;
  cost[11,21,11] =  83;
  cost[12,0,11] =  387;
  cost[12,1,11] =  20;
  cost[12,2,11] =  70;
  cost[12,3,11] =  113;
  cost[12,4,11] =  128;
  cost[12,5,11] =  118;
  cost[12,6,11] =  114;
  cost[12,7,11] =  396;
  cost[12,8,11] =  171;
  cost[12,9,11] =  220;
  cost[12,10,11] =  84;
  cost[12,11,11] =  428;
  cost[12,12,11] =  262;
  cost[12,13,11] =  0;
  cost[12,14,11] =  132;
  cost[12,15,11] =  353;
  cost[12,16,11] =  266;
  cost[12,17,11] =  261;
  cost[12,18,11] =  214;
  cost[12,19,11] =  167;
  cost[12,20,11] =  141;
  cost[12,21,11] =  348;
  cost[13,0,11] =  185;
  cost[13,1,11] =  48;
  cost[13,2,11] =  458;
  cost[13,3,11] =  481;
  cost[13,4,11] =  65;
  cost[13,5,11] =  373;
  cost[13,6,11] =  382;
  cost[13,7,11] =  8;
  cost[13,8,11] =  385;
  cost[13,9,11] =  61;
  cost[13,10,11] =  411;
  cost[13,11,11] =  386;
  cost[13,12,11] =  69;
  cost[13,13,11] =  132;
  cost[13,14,11] =  0;
  cost[13,15,11] =  250;
  cost[13,16,11] =  400;
  cost[13,17,11] =  355;
  cost[13,18,11] =  122;
  cost[13,19,11] =  277;
  cost[13,20,11] =  361;
  cost[13,21,11] =  56;
  cost[14,0,11] =  312;
  cost[14,1,11] =  386;
  cost[14,2,11] =  306;
  cost[14,3,11] =  263;
  cost[14,4,11] =  57;
  cost[14,5,11] =  31;
  cost[14,6,11] =  115;
  cost[14,7,11] =  122;
  cost[14,8,11] =  79;
  cost[14,9,11] =  35;
  cost[14,10,11] =  92;
  cost[14,11,11] =  237;
  cost[14,12,11] =  419;
  cost[14,13,11] =  353;
  cost[14,14,11] =  250;
  cost[14,15,11] =  0;
  cost[14,16,11] =  174;
  cost[14,17,11] =  452;
  cost[14,18,11] =  181;
  cost[14,19,11] =  109;
  cost[14,20,11] =  425;
  cost[14,21,11] =  273;
  cost[15,0,11] =  385;
  cost[15,1,11] =  113;
  cost[15,2,11] =  211;
  cost[15,3,11] =  278;
  cost[15,4,11] =  168;
  cost[15,5,11] =  113;
  cost[15,6,11] =  74;
  cost[15,7,11] =  314;
  cost[15,8,11] =  245;
  cost[15,9,11] =  228;
  cost[15,10,11] =  49;
  cost[15,11,11] =  269;
  cost[15,12,11] =  456;
  cost[15,13,11] =  266;
  cost[15,14,11] =  400;
  cost[15,15,11] =  174;
  cost[15,16,11] =  0;
  cost[15,17,11] =  453;
  cost[15,18,11] =  192;
  cost[15,19,11] =  39;
  cost[15,20,11] =  242;
  cost[15,21,11] =  325;
  cost[16,0,11] =  138;
  cost[16,1,11] =  447;
  cost[16,2,11] =  44;
  cost[16,3,11] =  272;
  cost[16,4,11] =  217;
  cost[16,5,11] =  30;
  cost[16,6,11] =  5;
  cost[16,7,11] =  90;
  cost[16,8,11] =  391;
  cost[16,9,11] =  184;
  cost[16,10,11] =  98;
  cost[16,11,11] =  356;
  cost[16,12,11] =  91;
  cost[16,13,11] =  261;
  cost[16,14,11] =  355;
  cost[16,15,11] =  452;
  cost[16,16,11] =  453;
  cost[16,17,11] =  0;
  cost[16,18,11] =  102;
  cost[16,19,11] =  122;
  cost[16,20,11] =  193;
  cost[16,21,11] =  244;
  cost[17,0,11] =  191;
  cost[17,1,11] =  73;
  cost[17,2,11] =  172;
  cost[17,3,11] =  255;
  cost[17,4,11] =  445;
  cost[17,5,11] =  401;
  cost[17,6,11] =  156;
  cost[17,7,11] =  116;
  cost[17,8,11] =  236;
  cost[17,9,11] =  349;
  cost[17,10,11] =  477;
  cost[17,11,11] =  360;
  cost[17,12,11] =  482;
  cost[17,13,11] =  214;
  cost[17,14,11] =  122;
  cost[17,15,11] =  181;
  cost[17,16,11] =  192;
  cost[17,17,11] =  102;
  cost[17,18,11] =  0;
  cost[17,19,11] =  330;
  cost[17,20,11] =  237;
  cost[17,21,11] =  273;
  cost[18,0,11] =  410;
  cost[18,1,11] =  242;
  cost[18,2,11] =  203;
  cost[18,3,11] =  169;
  cost[18,4,11] =  172;
  cost[18,5,11] =  82;
  cost[18,6,11] =  27;
  cost[18,7,11] =  328;
  cost[18,8,11] =  273;
  cost[18,9,11] =  319;
  cost[18,10,11] =  128;
  cost[18,11,11] =  5;
  cost[18,12,11] =  327;
  cost[18,13,11] =  167;
  cost[18,14,11] =  277;
  cost[18,15,11] =  109;
  cost[18,16,11] =  39;
  cost[18,17,11] =  122;
  cost[18,18,11] =  330;
  cost[18,19,11] =  0;
  cost[18,20,11] =  67;
  cost[18,21,11] =  80;
  cost[19,0,11] =  128;
  cost[19,1,11] =  349;
  cost[19,2,11] =  253;
  cost[19,3,11] =  150;
  cost[19,4,11] =  443;
  cost[19,5,11] =  478;
  cost[19,6,11] =  187;
  cost[19,7,11] =  187;
  cost[19,8,11] =  94;
  cost[19,9,11] =  300;
  cost[19,10,11] =  344;
  cost[19,11,11] =  417;
  cost[19,12,11] =  180;
  cost[19,13,11] =  141;
  cost[19,14,11] =  361;
  cost[19,15,11] =  425;
  cost[19,16,11] =  242;
  cost[19,17,11] =  193;
  cost[19,18,11] =  237;
  cost[19,19,11] =  67;
  cost[19,20,11] =  0;
  cost[19,21,11] =  191;
  cost[20,0,11] =  97;
  cost[20,1,11] =  252;
  cost[20,2,11] =  475;
  cost[20,3,11] =  298;
  cost[20,4,11] =  107;
  cost[20,5,11] =  14;
  cost[20,6,11] =  311;
  cost[20,7,11] =  246;
  cost[20,8,11] =  64;
  cost[20,9,11] =  194;
  cost[20,10,11] =  385;
  cost[20,11,11] =  396;
  cost[20,12,11] =  83;
  cost[20,13,11] =  348;
  cost[20,14,11] =  56;
  cost[20,15,11] =  273;
  cost[20,16,11] =  325;
  cost[20,17,11] =  244;
  cost[20,18,11] =  273;
  cost[20,19,11] =  80;
  cost[20,20,11] =  191;
  cost[20,21,11] =  0;
  cost[21,0,11] =  373;
  cost[21,1,11] =  411;
  cost[21,2,11] =  249;
  cost[21,3,11] =  478;
  cost[21,4,11] =  41;
  cost[21,5,11] =  96;
  cost[21,6,11] =  462;
  cost[21,7,11] =  159;
  cost[21,8,11] =  252;
  cost[21,9,11] =  22;
  cost[21,10,11] =  364;
  cost[21,11,11] =  234;
  cost[21,12,11] =  254;
  cost[21,13,11] =  163;
  cost[21,14,11] =  190;
  cost[21,15,11] =  108;
  cost[21,16,11] =  392;
  cost[21,17,11] =  471;
  cost[21,18,11] =  202;
  cost[21,19,11] =  416;
  cost[21,20,11] =  107;
  cost[21,21,11] =  372;
  cost[0,0,12] =  0;
  cost[0,1,12] =  0;
  cost[0,2,12] =  161;
  cost[0,3,12] =  325;
  cost[0,4,12] =  435;
  cost[0,5,12] =  131;
  cost[0,6,12] =  33;
  cost[0,7,12] =  474;
  cost[0,8,12] =  374;
  cost[0,9,12] =  359;
  cost[0,10,12] =  383;
  cost[0,11,12] =  400;
  cost[0,12,12] =  461;
  cost[0,13,12] =  22;
  cost[0,14,12] =  110;
  cost[0,15,12] =  222;
  cost[0,16,12] =  9;
  cost[0,17,12] =  467;
  cost[0,18,12] =  68;
  cost[0,19,12] =  246;
  cost[0,20,12] =  256;
  cost[0,21,12] =  271;
  cost[1,0,12] =  89;
  cost[1,1,12] =  161;
  cost[1,2,12] =  0;
  cost[1,3,12] =  351;
  cost[1,4,12] =  54;
  cost[1,5,12] =  97;
  cost[1,6,12] =  59;
  cost[1,7,12] =  161;
  cost[1,8,12] =  323;
  cost[1,9,12] =  431;
  cost[1,10,12] =  378;
  cost[1,11,12] =  6;
  cost[1,12,12] =  109;
  cost[1,13,12] =  220;
  cost[1,14,12] =  442;
  cost[1,15,12] =  241;
  cost[1,16,12] =  254;
  cost[1,17,12] =  433;
  cost[1,18,12] =  131;
  cost[1,19,12] =  129;
  cost[1,20,12] =  332;
  cost[1,21,12] =  48;
  cost[2,0,12] =  68;
  cost[2,1,12] =  325;
  cost[2,2,12] =  351;
  cost[2,3,12] =  0;
  cost[2,4,12] =  158;
  cost[2,5,12] =  329;
  cost[2,6,12] =  364;
  cost[2,7,12] =  141;
  cost[2,8,12] =  398;
  cost[2,9,12] =  127;
  cost[2,10,12] =  398;
  cost[2,11,12] =  185;
  cost[2,12,12] =  249;
  cost[2,13,12] =  238;
  cost[2,14,12] =  53;
  cost[2,15,12] =  304;
  cost[2,16,12] =  336;
  cost[2,17,12] =  112;
  cost[2,18,12] =  466;
  cost[2,19,12] =  176;
  cost[2,20,12] =  60;
  cost[2,21,12] =  361;
  cost[3,0,12] =  112;
  cost[3,1,12] =  435;
  cost[3,2,12] =  54;
  cost[3,3,12] =  158;
  cost[3,4,12] =  0;
  cost[3,5,12] =  97;
  cost[3,6,12] =  141;
  cost[3,7,12] =  410;
  cost[3,8,12] =  351;
  cost[3,9,12] =  90;
  cost[3,10,12] =  58;
  cost[3,11,12] =  480;
  cost[3,12,12] =  423;
  cost[3,13,12] =  106;
  cost[3,14,12] =  104;
  cost[3,15,12] =  294;
  cost[3,16,12] =  264;
  cost[3,17,12] =  433;
  cost[3,18,12] =  175;
  cost[3,19,12] =  406;
  cost[3,20,12] =  347;
  cost[3,21,12] =  302;
  cost[4,0,12] =  74;
  cost[4,1,12] =  131;
  cost[4,2,12] =  97;
  cost[4,3,12] =  329;
  cost[4,4,12] =  97;
  cost[4,5,12] =  0;
  cost[4,6,12] =  67;
  cost[4,7,12] =  75;
  cost[4,8,12] =  102;
  cost[4,9,12] =  372;
  cost[4,10,12] =  412;
  cost[4,11,12] =  214;
  cost[4,12,12] =  354;
  cost[4,13,12] =  104;
  cost[4,14,12] =  275;
  cost[4,15,12] =  231;
  cost[4,16,12] =  287;
  cost[4,17,12] =  444;
  cost[4,18,12] =  328;
  cost[4,19,12] =  429;
  cost[4,20,12] =  371;
  cost[4,21,12] =  196;
  cost[5,0,12] =  206;
  cost[5,1,12] =  33;
  cost[5,2,12] =  59;
  cost[5,3,12] =  364;
  cost[5,4,12] =  141;
  cost[5,5,12] =  67;
  cost[5,6,12] =  0;
  cost[5,7,12] =  193;
  cost[5,8,12] =  459;
  cost[5,9,12] =  51;
  cost[5,10,12] =  297;
  cost[5,11,12] =  270;
  cost[5,12,12] =  316;
  cost[5,13,12] =  246;
  cost[5,14,12] =  445;
  cost[5,15,12] =  239;
  cost[5,16,12] =  110;
  cost[5,17,12] =  263;
  cost[5,18,12] =  76;
  cost[5,19,12] =  160;
  cost[5,20,12] =  331;
  cost[5,21,12] =  151;
  cost[6,0,12] =  287;
  cost[6,1,12] =  474;
  cost[6,2,12] =  161;
  cost[6,3,12] =  141;
  cost[6,4,12] =  410;
  cost[6,5,12] =  75;
  cost[6,6,12] =  193;
  cost[6,7,12] =  0;
  cost[6,8,12] =  80;
  cost[6,9,12] =  477;
  cost[6,10,12] =  89;
  cost[6,11,12] =  184;
  cost[6,12,12] =  268;
  cost[6,13,12] =  321;
  cost[6,14,12] =  472;
  cost[6,15,12] =  229;
  cost[6,16,12] =  166;
  cost[6,17,12] =  417;
  cost[6,18,12] =  116;
  cost[6,19,12] =  362;
  cost[6,20,12] =  453;
  cost[6,21,12] =  62;
  cost[7,0,12] =  223;
  cost[7,1,12] =  374;
  cost[7,2,12] =  323;
  cost[7,3,12] =  398;
  cost[7,4,12] =  351;
  cost[7,5,12] =  102;
  cost[7,6,12] =  459;
  cost[7,7,12] =  80;
  cost[7,8,12] =  0;
  cost[7,9,12] =  114;
  cost[7,10,12] =  368;
  cost[7,11,12] =  215;
  cost[7,12,12] =  430;
  cost[7,13,12] =  131;
  cost[7,14,12] =  176;
  cost[7,15,12] =  186;
  cost[7,16,12] =  242;
  cost[7,17,12] =  439;
  cost[7,18,12] =  262;
  cost[7,19,12] =  402;
  cost[7,20,12] =  286;
  cost[7,21,12] =  414;
  cost[8,0,12] =  427;
  cost[8,1,12] =  359;
  cost[8,2,12] =  431;
  cost[8,3,12] =  127;
  cost[8,4,12] =  90;
  cost[8,5,12] =  372;
  cost[8,6,12] =  51;
  cost[8,7,12] =  477;
  cost[8,8,12] =  114;
  cost[8,9,12] =  0;
  cost[8,10,12] =  10;
  cost[8,11,12] =  175;
  cost[8,12,12] =  111;
  cost[8,13,12] =  195;
  cost[8,14,12] =  443;
  cost[8,15,12] =  432;
  cost[8,16,12] =  183;
  cost[8,17,12] =  189;
  cost[8,18,12] =  114;
  cost[8,19,12] =  116;
  cost[8,20,12] =  306;
  cost[8,21,12] =  477;
  cost[9,0,12] =  52;
  cost[9,1,12] =  383;
  cost[9,2,12] =  378;
  cost[9,3,12] =  398;
  cost[9,4,12] =  58;
  cost[9,5,12] =  412;
  cost[9,6,12] =  297;
  cost[9,7,12] =  89;
  cost[9,8,12] =  368;
  cost[9,9,12] =  10;
  cost[9,10,12] =  0;
  cost[9,11,12] =  64;
  cost[9,12,12] =  31;
  cost[9,13,12] =  482;
  cost[9,14,12] =  433;
  cost[9,15,12] =  246;
  cost[9,16,12] =  429;
  cost[9,17,12] =  81;
  cost[9,18,12] =  422;
  cost[9,19,12] =  131;
  cost[9,20,12] =  323;
  cost[9,21,12] =  378;
  cost[10,0,12] =  228;
  cost[10,1,12] =  400;
  cost[10,2,12] =  6;
  cost[10,3,12] =  185;
  cost[10,4,12] =  480;
  cost[10,5,12] =  214;
  cost[10,6,12] =  270;
  cost[10,7,12] =  184;
  cost[10,8,12] =  215;
  cost[10,9,12] =  175;
  cost[10,10,12] =  64;
  cost[10,11,12] =  0;
  cost[10,12,12] =  180;
  cost[10,13,12] =  323;
  cost[10,14,12] =  422;
  cost[10,15,12] =  202;
  cost[10,16,12] =  333;
  cost[10,17,12] =  114;
  cost[10,18,12] =  314;
  cost[10,19,12] =  45;
  cost[10,20,12] =  74;
  cost[10,21,12] =  262;
  cost[11,0,12] =  133;
  cost[11,1,12] =  461;
  cost[11,2,12] =  109;
  cost[11,3,12] =  249;
  cost[11,4,12] =  423;
  cost[11,5,12] =  354;
  cost[11,6,12] =  316;
  cost[11,7,12] =  268;
  cost[11,8,12] =  430;
  cost[11,9,12] =  111;
  cost[11,10,12] =  31;
  cost[11,11,12] =  180;
  cost[11,12,12] =  0;
  cost[11,13,12] =  377;
  cost[11,14,12] =  345;
  cost[11,15,12] =  85;
  cost[11,16,12] =  371;
  cost[11,17,12] =  431;
  cost[11,18,12] =  453;
  cost[11,19,12] =  435;
  cost[11,20,12] =  462;
  cost[11,21,12] =  451;
  cost[12,0,12] =  471;
  cost[12,1,12] =  22;
  cost[12,2,12] =  220;
  cost[12,3,12] =  238;
  cost[12,4,12] =  106;
  cost[12,5,12] =  104;
  cost[12,6,12] =  246;
  cost[12,7,12] =  321;
  cost[12,8,12] =  131;
  cost[12,9,12] =  195;
  cost[12,10,12] =  482;
  cost[12,11,12] =  323;
  cost[12,12,12] =  377;
  cost[12,13,12] =  0;
  cost[12,14,12] =  397;
  cost[12,15,12] =  466;
  cost[12,16,12] =  163;
  cost[12,17,12] =  44;
  cost[12,18,12] =  305;
  cost[12,19,12] =  57;
  cost[12,20,12] =  437;
  cost[12,21,12] =  63;
  cost[13,0,12] =  145;
  cost[13,1,12] =  110;
  cost[13,2,12] =  442;
  cost[13,3,12] =  53;
  cost[13,4,12] =  104;
  cost[13,5,12] =  275;
  cost[13,6,12] =  445;
  cost[13,7,12] =  472;
  cost[13,8,12] =  176;
  cost[13,9,12] =  443;
  cost[13,10,12] =  433;
  cost[13,11,12] =  422;
  cost[13,12,12] =  345;
  cost[13,13,12] =  397;
  cost[13,14,12] =  0;
  cost[13,15,12] =  2;
  cost[13,16,12] =  440;
  cost[13,17,12] =  127;
  cost[13,18,12] =  116;
  cost[13,19,12] =  270;
  cost[13,20,12] =  172;
  cost[13,21,12] =  190;
  cost[14,0,12] =  460;
  cost[14,1,12] =  222;
  cost[14,2,12] =  241;
  cost[14,3,12] =  304;
  cost[14,4,12] =  294;
  cost[14,5,12] =  231;
  cost[14,6,12] =  239;
  cost[14,7,12] =  229;
  cost[14,8,12] =  186;
  cost[14,9,12] =  432;
  cost[14,10,12] =  246;
  cost[14,11,12] =  202;
  cost[14,12,12] =  85;
  cost[14,13,12] =  466;
  cost[14,14,12] =  2;
  cost[14,15,12] =  0;
  cost[14,16,12] =  453;
  cost[14,17,12] =  427;
  cost[14,18,12] =  262;
  cost[14,19,12] =  55;
  cost[14,20,12] =  314;
  cost[14,21,12] =  209;
  cost[15,0,12] =  481;
  cost[15,1,12] =  9;
  cost[15,2,12] =  254;
  cost[15,3,12] =  336;
  cost[15,4,12] =  264;
  cost[15,5,12] =  287;
  cost[15,6,12] =  110;
  cost[15,7,12] =  166;
  cost[15,8,12] =  242;
  cost[15,9,12] =  183;
  cost[15,10,12] =  429;
  cost[15,11,12] =  333;
  cost[15,12,12] =  371;
  cost[15,13,12] =  163;
  cost[15,14,12] =  440;
  cost[15,15,12] =  453;
  cost[15,16,12] =  0;
  cost[15,17,12] =  188;
  cost[15,18,12] =  476;
  cost[15,19,12] =  167;
  cost[15,20,12] =  413;
  cost[15,21,12] =  389;
  cost[16,0,12] =  107;
  cost[16,1,12] =  467;
  cost[16,2,12] =  433;
  cost[16,3,12] =  112;
  cost[16,4,12] =  433;
  cost[16,5,12] =  444;
  cost[16,6,12] =  263;
  cost[16,7,12] =  417;
  cost[16,8,12] =  439;
  cost[16,9,12] =  189;
  cost[16,10,12] =  81;
  cost[16,11,12] =  114;
  cost[16,12,12] =  431;
  cost[16,13,12] =  44;
  cost[16,14,12] =  127;
  cost[16,15,12] =  427;
  cost[16,16,12] =  188;
  cost[16,17,12] =  0;
  cost[16,18,12] =  434;
  cost[16,19,12] =  455;
  cost[16,20,12] =  150;
  cost[16,21,12] =  387;
  cost[17,0,12] =  456;
  cost[17,1,12] =  68;
  cost[17,2,12] =  131;
  cost[17,3,12] =  466;
  cost[17,4,12] =  175;
  cost[17,5,12] =  328;
  cost[17,6,12] =  76;
  cost[17,7,12] =  116;
  cost[17,8,12] =  262;
  cost[17,9,12] =  114;
  cost[17,10,12] =  422;
  cost[17,11,12] =  314;
  cost[17,12,12] =  453;
  cost[17,13,12] =  305;
  cost[17,14,12] =  116;
  cost[17,15,12] =  262;
  cost[17,16,12] =  476;
  cost[17,17,12] =  434;
  cost[17,18,12] =  0;
  cost[17,19,12] =  181;
  cost[17,20,12] =  36;
  cost[17,21,12] =  345;
  cost[18,0,12] =  252;
  cost[18,1,12] =  246;
  cost[18,2,12] =  129;
  cost[18,3,12] =  176;
  cost[18,4,12] =  406;
  cost[18,5,12] =  429;
  cost[18,6,12] =  160;
  cost[18,7,12] =  362;
  cost[18,8,12] =  402;
  cost[18,9,12] =  116;
  cost[18,10,12] =  131;
  cost[18,11,12] =  45;
  cost[18,12,12] =  435;
  cost[18,13,12] =  57;
  cost[18,14,12] =  270;
  cost[18,15,12] =  55;
  cost[18,16,12] =  167;
  cost[18,17,12] =  455;
  cost[18,18,12] =  181;
  cost[18,19,12] =  0;
  cost[18,20,12] =  132;
  cost[18,21,12] =  480;
  cost[19,0,12] =  141;
  cost[19,1,12] =  256;
  cost[19,2,12] =  332;
  cost[19,3,12] =  60;
  cost[19,4,12] =  347;
  cost[19,5,12] =  371;
  cost[19,6,12] =  331;
  cost[19,7,12] =  453;
  cost[19,8,12] =  286;
  cost[19,9,12] =  306;
  cost[19,10,12] =  323;
  cost[19,11,12] =  74;
  cost[19,12,12] =  462;
  cost[19,13,12] =  437;
  cost[19,14,12] =  172;
  cost[19,15,12] =  314;
  cost[19,16,12] =  413;
  cost[19,17,12] =  150;
  cost[19,18,12] =  36;
  cost[19,19,12] =  132;
  cost[19,20,12] =  0;
  cost[19,21,12] =  397;
  cost[20,0,12] =  336;
  cost[20,1,12] =  271;
  cost[20,2,12] =  48;
  cost[20,3,12] =  361;
  cost[20,4,12] =  302;
  cost[20,5,12] =  196;
  cost[20,6,12] =  151;
  cost[20,7,12] =  62;
  cost[20,8,12] =  414;
  cost[20,9,12] =  477;
  cost[20,10,12] =  378;
  cost[20,11,12] =  262;
  cost[20,12,12] =  451;
  cost[20,13,12] =  63;
  cost[20,14,12] =  190;
  cost[20,15,12] =  209;
  cost[20,16,12] =  389;
  cost[20,17,12] =  387;
  cost[20,18,12] =  345;
  cost[20,19,12] =  480;
  cost[20,20,12] =  397;
  cost[20,21,12] =  0;
  cost[21,0,12] =  447;
  cost[21,1,12] =  122;
  cost[21,2,12] =  107;
  cost[21,3,12] =  183;
  cost[21,4,12] =  320;
  cost[21,5,12] =  35;
  cost[21,6,12] =  262;
  cost[21,7,12] =  71;
  cost[21,8,12] =  181;
  cost[21,9,12] =  86;
  cost[21,10,12] =  393;
  cost[21,11,12] =  228;
  cost[21,12,12] =  385;
  cost[21,13,12] =  238;
  cost[21,14,12] =  49;
  cost[21,15,12] =  25;
  cost[21,16,12] =  149;
  cost[21,17,12] =  34;
  cost[21,18,12] =  308;
  cost[21,19,12] =  343;
  cost[21,20,12] =  313;
  cost[21,21,12] =  175;
  cost[0,0,13] =  0;
  cost[0,1,13] =  196;
  cost[0,2,13] =  17;
  cost[0,3,13] =  285;
  cost[0,4,13] =  26;
  cost[0,5,13] =  331;
  cost[0,6,13] =  241;
  cost[0,7,13] =  116;
  cost[0,8,13] =  469;
  cost[0,9,13] =  266;
  cost[0,10,13] =  200;
  cost[0,11,13] =  404;
  cost[0,12,13] =  164;
  cost[0,13,13] =  436;
  cost[0,14,13] =  134;
  cost[0,15,13] =  321;
  cost[0,16,13] =  292;
  cost[0,17,13] =  300;
  cost[0,18,13] =  345;
  cost[0,19,13] =  37;
  cost[0,20,13] =  258;
  cost[0,21,13] =  280;
  cost[1,0,13] =  196;
  cost[1,1,13] =  0;
  cost[1,2,13] =  6;
  cost[1,3,13] =  478;
  cost[1,4,13] =  357;
  cost[1,5,13] =  266;
  cost[1,6,13] =  198;
  cost[1,7,13] =  483;
  cost[1,8,13] =  62;
  cost[1,9,13] =  25;
  cost[1,10,13] =  320;
  cost[1,11,13] =  258;
  cost[1,12,13] =  43;
  cost[1,13,13] =  122;
  cost[1,14,13] =  285;
  cost[1,15,13] =  374;
  cost[1,16,13] =  363;
  cost[1,17,13] =  401;
  cost[1,18,13] =  360;
  cost[1,19,13] =  146;
  cost[1,20,13] =  118;
  cost[1,21,13] =  280;
  cost[2,0,13] =  17;
  cost[2,1,13] =  6;
  cost[2,2,13] =  0;
  cost[2,3,13] =  70;
  cost[2,4,13] =  415;
  cost[2,5,13] =  148;
  cost[2,6,13] =  363;
  cost[2,7,13] =  231;
  cost[2,8,13] =  10;
  cost[2,9,13] =  401;
  cost[2,10,13] =  5;
  cost[2,11,13] =  291;
  cost[2,12,13] =  450;
  cost[2,13,13] =  12;
  cost[2,14,13] =  285;
  cost[2,15,13] =  324;
  cost[2,16,13] =  279;
  cost[2,17,13] =  0;
  cost[2,18,13] =  324;
  cost[2,19,13] =  341;
  cost[2,20,13] =  26;
  cost[2,21,13] =  161;
  cost[3,0,13] =  285;
  cost[3,1,13] =  478;
  cost[3,2,13] =  70;
  cost[3,3,13] =  0;
  cost[3,4,13] =  69;
  cost[3,5,13] =  283;
  cost[3,6,13] =  401;
  cost[3,7,13] =  444;
  cost[3,8,13] =  163;
  cost[3,9,13] =  319;
  cost[3,10,13] =  321;
  cost[3,11,13] =  310;
  cost[3,12,13] =  437;
  cost[3,13,13] =  117;
  cost[3,14,13] =  137;
  cost[3,15,13] =  24;
  cost[3,16,13] =  49;
  cost[3,17,13] =  285;
  cost[3,18,13] =  388;
  cost[3,19,13] =  280;
  cost[3,20,13] =  296;
  cost[3,21,13] =  305;
  cost[4,0,13] =  26;
  cost[4,1,13] =  357;
  cost[4,2,13] =  415;
  cost[4,3,13] =  69;
  cost[4,4,13] =  0;
  cost[4,5,13] =  103;
  cost[4,6,13] =  272;
  cost[4,7,13] =  298;
  cost[4,8,13] =  389;
  cost[4,9,13] =  113;
  cost[4,10,13] =  93;
  cost[4,11,13] =  390;
  cost[4,12,13] =  438;
  cost[4,13,13] =  435;
  cost[4,14,13] =  416;
  cost[4,15,13] =  115;
  cost[4,16,13] =  67;
  cost[4,17,13] =  1;
  cost[4,18,13] =  399;
  cost[4,19,13] =  468;
  cost[4,20,13] =  446;
  cost[4,21,13] =  79;
  cost[5,0,13] =  331;
  cost[5,1,13] =  266;
  cost[5,2,13] =  148;
  cost[5,3,13] =  283;
  cost[5,4,13] =  103;
  cost[5,5,13] =  0;
  cost[5,6,13] =  283;
  cost[5,7,13] =  389;
  cost[5,8,13] =  258;
  cost[5,9,13] =  401;
  cost[5,10,13] =  42;
  cost[5,11,13] =  282;
  cost[5,12,13] =  450;
  cost[5,13,13] =  328;
  cost[5,14,13] =  187;
  cost[5,15,13] =  247;
  cost[5,16,13] =  140;
  cost[5,17,13] =  8;
  cost[5,18,13] =  49;
  cost[5,19,13] =  244;
  cost[5,20,13] =  281;
  cost[5,21,13] =  347;
  cost[6,0,13] =  241;
  cost[6,1,13] =  198;
  cost[6,2,13] =  363;
  cost[6,3,13] =  401;
  cost[6,4,13] =  272;
  cost[6,5,13] =  283;
  cost[6,6,13] =  0;
  cost[6,7,13] =  395;
  cost[6,8,13] =  441;
  cost[6,9,13] =  55;
  cost[6,10,13] =  349;
  cost[6,11,13] =  392;
  cost[6,12,13] =  472;
  cost[6,13,13] =  465;
  cost[6,14,13] =  460;
  cost[6,15,13] =  474;
  cost[6,16,13] =  380;
  cost[6,17,13] =  445;
  cost[6,18,13] =  436;
  cost[6,19,13] =  460;
  cost[6,20,13] =  265;
  cost[6,21,13] =  235;
  cost[7,0,13] =  116;
  cost[7,1,13] =  483;
  cost[7,2,13] =  231;
  cost[7,3,13] =  444;
  cost[7,4,13] =  298;
  cost[7,5,13] =  389;
  cost[7,6,13] =  395;
  cost[7,7,13] =  0;
  cost[7,8,13] =  39;
  cost[7,9,13] =  152;
  cost[7,10,13] =  408;
  cost[7,11,13] =  322;
  cost[7,12,13] =  119;
  cost[7,13,13] =  252;
  cost[7,14,13] =  25;
  cost[7,15,13] =  366;
  cost[7,16,13] =  393;
  cost[7,17,13] =  34;
  cost[7,18,13] =  415;
  cost[7,19,13] =  153;
  cost[7,20,13] =  315;
  cost[7,21,13] =  279;
  cost[8,0,13] =  469;
  cost[8,1,13] =  62;
  cost[8,2,13] =  10;
  cost[8,3,13] =  163;
  cost[8,4,13] =  389;
  cost[8,5,13] =  258;
  cost[8,6,13] =  441;
  cost[8,7,13] =  39;
  cost[8,8,13] =  0;
  cost[8,9,13] =  227;
  cost[8,10,13] =  237;
  cost[8,11,13] =  359;
  cost[8,12,13] =  92;
  cost[8,13,13] =  146;
  cost[8,14,13] =  347;
  cost[8,15,13] =  74;
  cost[8,16,13] =  122;
  cost[8,17,13] =  337;
  cost[8,18,13] =  454;
  cost[8,19,13] =  83;
  cost[8,20,13] =  289;
  cost[8,21,13] =  431;
  cost[9,0,13] =  266;
  cost[9,1,13] =  25;
  cost[9,2,13] =  401;
  cost[9,3,13] =  319;
  cost[9,4,13] =  113;
  cost[9,5,13] =  401;
  cost[9,6,13] =  55;
  cost[9,7,13] =  152;
  cost[9,8,13] =  227;
  cost[9,9,13] =  0;
  cost[9,10,13] =  41;
  cost[9,11,13] =  312;
  cost[9,12,13] =  388;
  cost[9,13,13] =  194;
  cost[9,14,13] =  236;
  cost[9,15,13] =  227;
  cost[9,16,13] =  313;
  cost[9,17,13] =  5;
  cost[9,18,13] =  252;
  cost[9,19,13] =  195;
  cost[9,20,13] =  398;
  cost[9,21,13] =  286;
  cost[10,0,13] =  200;
  cost[10,1,13] =  320;
  cost[10,2,13] =  5;
  cost[10,3,13] =  321;
  cost[10,4,13] =  93;
  cost[10,5,13] =  42;
  cost[10,6,13] =  349;
  cost[10,7,13] =  408;
  cost[10,8,13] =  237;
  cost[10,9,13] =  41;
  cost[10,10,13] =  0;
  cost[10,11,13] =  67;
  cost[10,12,13] =  118;
  cost[10,13,13] =  407;
  cost[10,14,13] =  370;
  cost[10,15,13] =  346;
  cost[10,16,13] =  160;
  cost[10,17,13] =  246;
  cost[10,18,13] =  438;
  cost[10,19,13] =  307;
  cost[10,20,13] =  109;
  cost[10,21,13] =  28;
  cost[11,0,13] =  404;
  cost[11,1,13] =  258;
  cost[11,2,13] =  291;
  cost[11,3,13] =  310;
  cost[11,4,13] =  390;
  cost[11,5,13] =  282;
  cost[11,6,13] =  392;
  cost[11,7,13] =  322;
  cost[11,8,13] =  359;
  cost[11,9,13] =  312;
  cost[11,10,13] =  67;
  cost[11,11,13] =  0;
  cost[11,12,13] =  447;
  cost[11,13,13] =  483;
  cost[11,14,13] =  29;
  cost[11,15,13] =  253;
  cost[11,16,13] =  430;
  cost[11,17,13] =  378;
  cost[11,18,13] =  294;
  cost[11,19,13] =  259;
  cost[11,20,13] =  283;
  cost[11,21,13] =  5;
  cost[12,0,13] =  164;
  cost[12,1,13] =  43;
  cost[12,2,13] =  450;
  cost[12,3,13] =  437;
  cost[12,4,13] =  438;
  cost[12,5,13] =  450;
  cost[12,6,13] =  472;
  cost[12,7,13] =  119;
  cost[12,8,13] =  92;
  cost[12,9,13] =  388;
  cost[12,10,13] =  118;
  cost[12,11,13] =  447;
  cost[12,12,13] =  0;
  cost[12,13,13] =  27;
  cost[12,14,13] =  318;
  cost[12,15,13] =  17;
  cost[12,16,13] =  279;
  cost[12,17,13] =  30;
  cost[12,18,13] =  416;
  cost[12,19,13] =  82;
  cost[12,20,13] =  158;
  cost[12,21,13] =  483;
  cost[13,0,13] =  436;
  cost[13,1,13] =  122;
  cost[13,2,13] =  12;
  cost[13,3,13] =  117;
  cost[13,4,13] =  435;
  cost[13,5,13] =  328;
  cost[13,6,13] =  465;
  cost[13,7,13] =  252;
  cost[13,8,13] =  146;
  cost[13,9,13] =  194;
  cost[13,10,13] =  407;
  cost[13,11,13] =  483;
  cost[13,12,13] =  27;
  cost[13,13,13] =  0;
  cost[13,14,13] =  81;
  cost[13,15,13] =  370;
  cost[13,16,13] =  63;
  cost[13,17,13] =  242;
  cost[13,18,13] =  132;
  cost[13,19,13] =  18;
  cost[13,20,13] =  65;
  cost[13,21,13] =  242;
  cost[14,0,13] =  134;
  cost[14,1,13] =  285;
  cost[14,2,13] =  285;
  cost[14,3,13] =  137;
  cost[14,4,13] =  416;
  cost[14,5,13] =  187;
  cost[14,6,13] =  460;
  cost[14,7,13] =  25;
  cost[14,8,13] =  347;
  cost[14,9,13] =  236;
  cost[14,10,13] =  370;
  cost[14,11,13] =  29;
  cost[14,12,13] =  318;
  cost[14,13,13] =  81;
  cost[14,14,13] =  0;
  cost[14,15,13] =  11;
  cost[14,16,13] =  205;
  cost[14,17,13] =  47;
  cost[14,18,13] =  40;
  cost[14,19,13] =  458;
  cost[14,20,13] =  477;
  cost[14,21,13] =  419;
  cost[15,0,13] =  321;
  cost[15,1,13] =  374;
  cost[15,2,13] =  324;
  cost[15,3,13] =  24;
  cost[15,4,13] =  115;
  cost[15,5,13] =  247;
  cost[15,6,13] =  474;
  cost[15,7,13] =  366;
  cost[15,8,13] =  74;
  cost[15,9,13] =  227;
  cost[15,10,13] =  346;
  cost[15,11,13] =  253;
  cost[15,12,13] =  17;
  cost[15,13,13] =  370;
  cost[15,14,13] =  11;
  cost[15,15,13] =  0;
  cost[15,16,13] =  253;
  cost[15,17,13] =  219;
  cost[15,18,13] =  274;
  cost[15,19,13] =  265;
  cost[15,20,13] =  246;
  cost[15,21,13] =  109;
  cost[16,0,13] =  292;
  cost[16,1,13] =  363;
  cost[16,2,13] =  279;
  cost[16,3,13] =  49;
  cost[16,4,13] =  67;
  cost[16,5,13] =  140;
  cost[16,6,13] =  380;
  cost[16,7,13] =  393;
  cost[16,8,13] =  122;
  cost[16,9,13] =  313;
  cost[16,10,13] =  160;
  cost[16,11,13] =  430;
  cost[16,12,13] =  279;
  cost[16,13,13] =  63;
  cost[16,14,13] =  205;
  cost[16,15,13] =  253;
  cost[16,16,13] =  0;
  cost[16,17,13] =  42;
  cost[16,18,13] =  140;
  cost[16,19,13] =  215;
  cost[16,20,13] =  124;
  cost[16,21,13] =  298;
  cost[17,0,13] =  300;
  cost[17,1,13] =  401;
  cost[17,2,13] =  0;
  cost[17,3,13] =  285;
  cost[17,4,13] =  1;
  cost[17,5,13] =  8;
  cost[17,6,13] =  445;
  cost[17,7,13] =  34;
  cost[17,8,13] =  337;
  cost[17,9,13] =  5;
  cost[17,10,13] =  246;
  cost[17,11,13] =  378;
  cost[17,12,13] =  30;
  cost[17,13,13] =  242;
  cost[17,14,13] =  47;
  cost[17,15,13] =  219;
  cost[17,16,13] =  42;
  cost[17,17,13] =  0;
  cost[17,18,13] =  326;
  cost[17,19,13] =  380;
  cost[17,20,13] =  102;
  cost[17,21,13] =  390;
  cost[18,0,13] =  345;
  cost[18,1,13] =  360;
  cost[18,2,13] =  324;
  cost[18,3,13] =  388;
  cost[18,4,13] =  399;
  cost[18,5,13] =  49;
  cost[18,6,13] =  436;
  cost[18,7,13] =  415;
  cost[18,8,13] =  454;
  cost[18,9,13] =  252;
  cost[18,10,13] =  438;
  cost[18,11,13] =  294;
  cost[18,12,13] =  416;
  cost[18,13,13] =  132;
  cost[18,14,13] =  40;
  cost[18,15,13] =  274;
  cost[18,16,13] =  140;
  cost[18,17,13] =  326;
  cost[18,18,13] =  0;
  cost[18,19,13] =  234;
  cost[18,20,13] =  408;
  cost[18,21,13] =  204;
  cost[19,0,13] =  37;
  cost[19,1,13] =  146;
  cost[19,2,13] =  341;
  cost[19,3,13] =  280;
  cost[19,4,13] =  468;
  cost[19,5,13] =  244;
  cost[19,6,13] =  460;
  cost[19,7,13] =  153;
  cost[19,8,13] =  83;
  cost[19,9,13] =  195;
  cost[19,10,13] =  307;
  cost[19,11,13] =  259;
  cost[19,12,13] =  82;
  cost[19,13,13] =  18;
  cost[19,14,13] =  458;
  cost[19,15,13] =  265;
  cost[19,16,13] =  215;
  cost[19,17,13] =  380;
  cost[19,18,13] =  234;
  cost[19,19,13] =  0;
  cost[19,20,13] =  456;
  cost[19,21,13] =  216;
  cost[20,0,13] =  258;
  cost[20,1,13] =  118;
  cost[20,2,13] =  26;
  cost[20,3,13] =  296;
  cost[20,4,13] =  446;
  cost[20,5,13] =  281;
  cost[20,6,13] =  265;
  cost[20,7,13] =  315;
  cost[20,8,13] =  289;
  cost[20,9,13] =  398;
  cost[20,10,13] =  109;
  cost[20,11,13] =  283;
  cost[20,12,13] =  158;
  cost[20,13,13] =  65;
  cost[20,14,13] =  477;
  cost[20,15,13] =  246;
  cost[20,16,13] =  124;
  cost[20,17,13] =  102;
  cost[20,18,13] =  408;
  cost[20,19,13] =  456;
  cost[20,20,13] =  0;
  cost[20,21,13] =  19;
  cost[21,0,13] =  280;
  cost[21,1,13] =  280;
  cost[21,2,13] =  161;
  cost[21,3,13] =  305;
  cost[21,4,13] =  79;
  cost[21,5,13] =  347;
  cost[21,6,13] =  235;
  cost[21,7,13] =  279;
  cost[21,8,13] =  431;
  cost[21,9,13] =  286;
  cost[21,10,13] =  28;
  cost[21,11,13] =  5;
  cost[21,12,13] =  483;
  cost[21,13,13] =  242;
  cost[21,14,13] =  419;
  cost[21,15,13] =  109;
  cost[21,16,13] =  298;
  cost[21,17,13] =  390;
  cost[21,18,13] =  204;
  cost[21,19,13] =  216;
  cost[21,20,13] =  19;
  cost[21,21,13] =  0;
  cost[0,0,14] =  0;
  cost[0,1,14] =  12;
  cost[0,2,14] =  192;
  cost[0,3,14] =  443;
  cost[0,4,14] =  266;
  cost[0,5,14] =  411;
  cost[0,6,14] =  234;
  cost[0,7,14] =  48;
  cost[0,8,14] =  174;
  cost[0,9,14] =  344;
  cost[0,10,14] =  331;
  cost[0,11,14] =  216;
  cost[0,12,14] =  0;
  cost[0,13,14] =  63;
  cost[0,14,14] =  341;
  cost[0,15,14] =  299;
  cost[0,16,14] =  278;
  cost[0,17,14] =  184;
  cost[0,18,14] =  196;
  cost[0,19,14] =  380;
  cost[0,20,14] =  90;
  cost[0,21,14] =  335;
  cost[1,0,14] =  12;
  cost[1,1,14] =  0;
  cost[1,2,14] =  15;
  cost[1,3,14] =  56;
  cost[1,4,14] =  125;
  cost[1,5,14] =  471;
  cost[1,6,14] =  272;
  cost[1,7,14] =  324;
  cost[1,8,14] =  6;
  cost[1,9,14] =  45;
  cost[1,10,14] =  14;
  cost[1,11,14] =  19;
  cost[1,12,14] =  237;
  cost[1,13,14] =  457;
  cost[1,14,14] =  285;
  cost[1,15,14] =  165;
  cost[1,16,14] =  208;
  cost[1,17,14] =  334;
  cost[1,18,14] =  340;
  cost[1,19,14] =  68;
  cost[1,20,14] =  181;
  cost[1,21,14] =  72;
  cost[2,0,14] =  192;
  cost[2,1,14] =  15;
  cost[2,2,14] =  0;
  cost[2,3,14] =  245;
  cost[2,4,14] =  414;
  cost[2,5,14] =  368;
  cost[2,6,14] =  39;
  cost[2,7,14] =  114;
  cost[2,8,14] =  80;
  cost[2,9,14] =  420;
  cost[2,10,14] =  204;
  cost[2,11,14] =  415;
  cost[2,12,14] =  68;
  cost[2,13,14] =  220;
  cost[2,14,14] =  471;
  cost[2,15,14] =  193;
  cost[2,16,14] =  207;
  cost[2,17,14] =  260;
  cost[2,18,14] =  33;
  cost[2,19,14] =  214;
  cost[2,20,14] =  305;
  cost[2,21,14] =  47;
  cost[3,0,14] =  443;
  cost[3,1,14] =  56;
  cost[3,2,14] =  245;
  cost[3,3,14] =  0;
  cost[3,4,14] =  59;
  cost[3,5,14] =  21;
  cost[3,6,14] =  35;
  cost[3,7,14] =  224;
  cost[3,8,14] =  229;
  cost[3,9,14] =  369;
  cost[3,10,14] =  80;
  cost[3,11,14] =  298;
  cost[3,12,14] =  67;
  cost[3,13,14] =  153;
  cost[3,14,14] =  367;
  cost[3,15,14] =  312;
  cost[3,16,14] =  83;
  cost[3,17,14] =  251;
  cost[3,18,14] =  352;
  cost[3,19,14] =  198;
  cost[3,20,14] =  332;
  cost[3,21,14] =  288;
  cost[4,0,14] =  266;
  cost[4,1,14] =  125;
  cost[4,2,14] =  414;
  cost[4,3,14] =  59;
  cost[4,4,14] =  0;
  cost[4,5,14] =  264;
  cost[4,6,14] =  356;
  cost[4,7,14] =  139;
  cost[4,8,14] =  252;
  cost[4,9,14] =  66;
  cost[4,10,14] =  347;
  cost[4,11,14] =  28;
  cost[4,12,14] =  99;
  cost[4,13,14] =  77;
  cost[4,14,14] =  333;
  cost[4,15,14] =  147;
  cost[4,16,14] =  311;
  cost[4,17,14] =  392;
  cost[4,18,14] =  168;
  cost[4,19,14] =  347;
  cost[4,20,14] =  133;
  cost[4,21,14] =  397;
  cost[5,0,14] =  411;
  cost[5,1,14] =  471;
  cost[5,2,14] =  368;
  cost[5,3,14] =  21;
  cost[5,4,14] =  264;
  cost[5,5,14] =  0;
  cost[5,6,14] =  214;
  cost[5,7,14] =  211;
  cost[5,8,14] =  300;
  cost[5,9,14] =  367;
  cost[5,10,14] =  95;
  cost[5,11,14] =  128;
  cost[5,12,14] =  451;
  cost[5,13,14] =  347;
  cost[5,14,14] =  480;
  cost[5,15,14] =  166;
  cost[5,16,14] =  195;
  cost[5,17,14] =  285;
  cost[5,18,14] =  85;
  cost[5,19,14] =  460;
  cost[5,20,14] =  158;
  cost[5,21,14] =  224;
  cost[6,0,14] =  234;
  cost[6,1,14] =  272;
  cost[6,2,14] =  39;
  cost[6,3,14] =  35;
  cost[6,4,14] =  356;
  cost[6,5,14] =  214;
  cost[6,6,14] =  0;
  cost[6,7,14] =  224;
  cost[6,8,14] =  88;
  cost[6,9,14] =  256;
  cost[6,10,14] =  324;
  cost[6,11,14] =  165;
  cost[6,12,14] =  106;
  cost[6,13,14] =  471;
  cost[6,14,14] =  477;
  cost[6,15,14] =  15;
  cost[6,16,14] =  155;
  cost[6,17,14] =  340;
  cost[6,18,14] =  149;
  cost[6,19,14] =  69;
  cost[6,20,14] =  88;
  cost[6,21,14] =  363;
  cost[7,0,14] =  48;
  cost[7,1,14] =  324;
  cost[7,2,14] =  114;
  cost[7,3,14] =  224;
  cost[7,4,14] =  139;
  cost[7,5,14] =  211;
  cost[7,6,14] =  224;
  cost[7,7,14] =  0;
  cost[7,8,14] =  388;
  cost[7,9,14] =  247;
  cost[7,10,14] =  376;
  cost[7,11,14] =  33;
  cost[7,12,14] =  215;
  cost[7,13,14] =  240;
  cost[7,14,14] =  30;
  cost[7,15,14] =  381;
  cost[7,16,14] =  435;
  cost[7,17,14] =  315;
  cost[7,18,14] =  466;
  cost[7,19,14] =  411;
  cost[7,20,14] =  473;
  cost[7,21,14] =  207;
  cost[8,0,14] =  174;
  cost[8,1,14] =  6;
  cost[8,2,14] =  80;
  cost[8,3,14] =  229;
  cost[8,4,14] =  252;
  cost[8,5,14] =  300;
  cost[8,6,14] =  88;
  cost[8,7,14] =  388;
  cost[8,8,14] =  0;
  cost[8,9,14] =  214;
  cost[8,10,14] =  295;
  cost[8,11,14] =  413;
  cost[8,12,14] =  54;
  cost[8,13,14] =  460;
  cost[8,14,14] =  36;
  cost[8,15,14] =  42;
  cost[8,16,14] =  453;
  cost[8,17,14] =  51;
  cost[8,18,14] =  198;
  cost[8,19,14] =  310;
  cost[8,20,14] =  200;
  cost[8,21,14] =  268;
  cost[9,0,14] =  344;
  cost[9,1,14] =  45;
  cost[9,2,14] =  420;
  cost[9,3,14] =  369;
  cost[9,4,14] =  66;
  cost[9,5,14] =  367;
  cost[9,6,14] =  256;
  cost[9,7,14] =  247;
  cost[9,8,14] =  214;
  cost[9,9,14] =  0;
  cost[9,10,14] =  80;
  cost[9,11,14] =  65;
  cost[9,12,14] =  303;
  cost[9,13,14] =  327;
  cost[9,14,14] =  442;
  cost[9,15,14] =  337;
  cost[9,16,14] =  58;
  cost[9,17,14] =  198;
  cost[9,18,14] =  367;
  cost[9,19,14] =  439;
  cost[9,20,14] =  150;
  cost[9,21,14] =  198;
  cost[10,0,14] =  331;
  cost[10,1,14] =  14;
  cost[10,2,14] =  204;
  cost[10,3,14] =  80;
  cost[10,4,14] =  347;
  cost[10,5,14] =  95;
  cost[10,6,14] =  324;
  cost[10,7,14] =  376;
  cost[10,8,14] =  295;
  cost[10,9,14] =  80;
  cost[10,10,14] =  0;
  cost[10,11,14] =  78;
  cost[10,12,14] =  188;
  cost[10,13,14] =  145;
  cost[10,14,14] =  234;
  cost[10,15,14] =  403;
  cost[10,16,14] =  440;
  cost[10,17,14] =  164;
  cost[10,18,14] =  458;
  cost[10,19,14] =  417;
  cost[10,20,14] =  200;
  cost[10,21,14] =  16;
  cost[11,0,14] =  216;
  cost[11,1,14] =  19;
  cost[11,2,14] =  415;
  cost[11,3,14] =  298;
  cost[11,4,14] =  28;
  cost[11,5,14] =  128;
  cost[11,6,14] =  165;
  cost[11,7,14] =  33;
  cost[11,8,14] =  413;
  cost[11,9,14] =  65;
  cost[11,10,14] =  78;
  cost[11,11,14] =  0;
  cost[11,12,14] =  251;
  cost[11,13,14] =  214;
  cost[11,14,14] =  213;
  cost[11,15,14] =  452;
  cost[11,16,14] =  482;
  cost[11,17,14] =  128;
  cost[11,18,14] =  48;
  cost[11,19,14] =  64;
  cost[11,20,14] =  431;
  cost[11,21,14] =  375;
  cost[12,0,14] =  0;
  cost[12,1,14] =  237;
  cost[12,2,14] =  68;
  cost[12,3,14] =  67;
  cost[12,4,14] =  99;
  cost[12,5,14] =  451;
  cost[12,6,14] =  106;
  cost[12,7,14] =  215;
  cost[12,8,14] =  54;
  cost[12,9,14] =  303;
  cost[12,10,14] =  188;
  cost[12,11,14] =  251;
  cost[12,12,14] =  0;
  cost[12,13,14] =  285;
  cost[12,14,14] =  434;
  cost[12,15,14] =  221;
  cost[12,16,14] =  168;
  cost[12,17,14] =  389;
  cost[12,18,14] =  372;
  cost[12,19,14] =  367;
  cost[12,20,14] =  327;
  cost[12,21,14] =  450;
  cost[13,0,14] =  63;
  cost[13,1,14] =  457;
  cost[13,2,14] =  220;
  cost[13,3,14] =  153;
  cost[13,4,14] =  77;
  cost[13,5,14] =  347;
  cost[13,6,14] =  471;
  cost[13,7,14] =  240;
  cost[13,8,14] =  460;
  cost[13,9,14] =  327;
  cost[13,10,14] =  145;
  cost[13,11,14] =  214;
  cost[13,12,14] =  285;
  cost[13,13,14] =  0;
  cost[13,14,14] =  472;
  cost[13,15,14] =  201;
  cost[13,16,14] =  475;
  cost[13,17,14] =  428;
  cost[13,18,14] =  365;
  cost[13,19,14] =  449;
  cost[13,20,14] =  362;
  cost[13,21,14] =  81;
  cost[14,0,14] =  341;
  cost[14,1,14] =  285;
  cost[14,2,14] =  471;
  cost[14,3,14] =  367;
  cost[14,4,14] =  333;
  cost[14,5,14] =  480;
  cost[14,6,14] =  477;
  cost[14,7,14] =  30;
  cost[14,8,14] =  36;
  cost[14,9,14] =  442;
  cost[14,10,14] =  234;
  cost[14,11,14] =  213;
  cost[14,12,14] =  434;
  cost[14,13,14] =  472;
  cost[14,14,14] =  0;
  cost[14,15,14] =  265;
  cost[14,16,14] =  333;
  cost[14,17,14] =  196;
  cost[14,18,14] =  478;
  cost[14,19,14] =  301;
  cost[14,20,14] =  195;
  cost[14,21,14] =  122;
  cost[15,0,14] =  299;
  cost[15,1,14] =  165;
  cost[15,2,14] =  193;
  cost[15,3,14] =  312;
  cost[15,4,14] =  147;
  cost[15,5,14] =  166;
  cost[15,6,14] =  15;
  cost[15,7,14] =  381;
  cost[15,8,14] =  42;
  cost[15,9,14] =  337;
  cost[15,10,14] =  403;
  cost[15,11,14] =  452;
  cost[15,12,14] =  221;
  cost[15,13,14] =  201;
  cost[15,14,14] =  265;
  cost[15,15,14] =  0;
  cost[15,16,14] =  259;
  cost[15,17,14] =  70;
  cost[15,18,14] =  241;
  cost[15,19,14] =  282;
  cost[15,20,14] =  355;
  cost[15,21,14] =  192;
  cost[16,0,14] =  278;
  cost[16,1,14] =  208;
  cost[16,2,14] =  207;
  cost[16,3,14] =  83;
  cost[16,4,14] =  311;
  cost[16,5,14] =  195;
  cost[16,6,14] =  155;
  cost[16,7,14] =  435;
  cost[16,8,14] =  453;
  cost[16,9,14] =  58;
  cost[16,10,14] =  440;
  cost[16,11,14] =  482;
  cost[16,12,14] =  168;
  cost[16,13,14] =  475;
  cost[16,14,14] =  333;
  cost[16,15,14] =  259;
  cost[16,16,14] =  0;
  cost[16,17,14] =  39;
  cost[16,18,14] =  97;
  cost[16,19,14] =  393;
  cost[16,20,14] =  406;
  cost[16,21,14] =  425;
  cost[17,0,14] =  184;
  cost[17,1,14] =  334;
  cost[17,2,14] =  260;
  cost[17,3,14] =  251;
  cost[17,4,14] =  392;
  cost[17,5,14] =  285;
  cost[17,6,14] =  340;
  cost[17,7,14] =  315;
  cost[17,8,14] =  51;
  cost[17,9,14] =  198;
  cost[17,10,14] =  164;
  cost[17,11,14] =  128;
  cost[17,12,14] =  389;
  cost[17,13,14] =  428;
  cost[17,14,14] =  196;
  cost[17,15,14] =  70;
  cost[17,16,14] =  39;
  cost[17,17,14] =  0;
  cost[17,18,14] =  478;
  cost[17,19,14] =  413;
  cost[17,20,14] =  77;
  cost[17,21,14] =  469;
  cost[18,0,14] =  196;
  cost[18,1,14] =  340;
  cost[18,2,14] =  33;
  cost[18,3,14] =  352;
  cost[18,4,14] =  168;
  cost[18,5,14] =  85;
  cost[18,6,14] =  149;
  cost[18,7,14] =  466;
  cost[18,8,14] =  198;
  cost[18,9,14] =  367;
  cost[18,10,14] =  458;
  cost[18,11,14] =  48;
  cost[18,12,14] =  372;
  cost[18,13,14] =  365;
  cost[18,14,14] =  478;
  cost[18,15,14] =  241;
  cost[18,16,14] =  97;
  cost[18,17,14] =  478;
  cost[18,18,14] =  0;
  cost[18,19,14] =  443;
  cost[18,20,14] =  434;
  cost[18,21,14] =  236;
  cost[19,0,14] =  380;
  cost[19,1,14] =  68;
  cost[19,2,14] =  214;
  cost[19,3,14] =  198;
  cost[19,4,14] =  347;
  cost[19,5,14] =  460;
  cost[19,6,14] =  69;
  cost[19,7,14] =  411;
  cost[19,8,14] =  310;
  cost[19,9,14] =  439;
  cost[19,10,14] =  417;
  cost[19,11,14] =  64;
  cost[19,12,14] =  367;
  cost[19,13,14] =  449;
  cost[19,14,14] =  301;
  cost[19,15,14] =  282;
  cost[19,16,14] =  393;
  cost[19,17,14] =  413;
  cost[19,18,14] =  443;
  cost[19,19,14] =  0;
  cost[19,20,14] =  416;
  cost[19,21,14] =  18;
  cost[20,0,14] =  90;
  cost[20,1,14] =  181;
  cost[20,2,14] =  305;
  cost[20,3,14] =  332;
  cost[20,4,14] =  133;
  cost[20,5,14] =  158;
  cost[20,6,14] =  88;
  cost[20,7,14] =  473;
  cost[20,8,14] =  200;
  cost[20,9,14] =  150;
  cost[20,10,14] =  200;
  cost[20,11,14] =  431;
  cost[20,12,14] =  327;
  cost[20,13,14] =  362;
  cost[20,14,14] =  195;
  cost[20,15,14] =  355;
  cost[20,16,14] =  406;
  cost[20,17,14] =  77;
  cost[20,18,14] =  434;
  cost[20,19,14] =  416;
  cost[20,20,14] =  0;
  cost[20,21,14] =  129;
  cost[21,0,14] =  335;
  cost[21,1,14] =  72;
  cost[21,2,14] =  47;
  cost[21,3,14] =  288;
  cost[21,4,14] =  397;
  cost[21,5,14] =  224;
  cost[21,6,14] =  363;
  cost[21,7,14] =  207;
  cost[21,8,14] =  268;
  cost[21,9,14] =  198;
  cost[21,10,14] =  16;
  cost[21,11,14] =  375;
  cost[21,12,14] =  450;
  cost[21,13,14] =  81;
  cost[21,14,14] =  122;
  cost[21,15,14] =  192;
  cost[21,16,14] =  425;
  cost[21,17,14] =  469;
  cost[21,18,14] =  236;
  cost[21,19,14] =  18;
  cost[21,20,14] =  129;
  cost[21,21,14] =  0;
  cost[0,0,15] =  0;
  cost[0,1,15] =  324;
  cost[0,2,15] =  134;
  cost[0,3,15] =  59;
  cost[0,4,15] =  99;
  cost[0,5,15] =  205;
  cost[0,6,15] =  301;
  cost[0,7,15] =  382;
  cost[0,8,15] =  76;
  cost[0,9,15] =  9;
  cost[0,10,15] =  403;
  cost[0,11,15] =  116;
  cost[0,12,15] =  106;
  cost[0,13,15] =  313;
  cost[0,14,15] =  38;
  cost[0,15,15] =  48;
  cost[0,16,15] =  189;
  cost[0,17,15] =  33;
  cost[0,18,15] =  461;
  cost[0,19,15] =  267;
  cost[0,20,15] =  19;
  cost[0,21,15] =  336;
  cost[1,0,15] =  324;
  cost[1,1,15] =  0;
  cost[1,2,15] =  454;
  cost[1,3,15] =  89;
  cost[1,4,15] =  268;
  cost[1,5,15] =  386;
  cost[1,6,15] =  107;
  cost[1,7,15] =  159;
  cost[1,8,15] =  31;
  cost[1,9,15] =  120;
  cost[1,10,15] =  352;
  cost[1,11,15] =  356;
  cost[1,12,15] =  255;
  cost[1,13,15] =  411;
  cost[1,14,15] =  456;
  cost[1,15,15] =  460;
  cost[1,16,15] =  228;
  cost[1,17,15] =  354;
  cost[1,18,15] =  52;
  cost[1,19,15] =  237;
  cost[1,20,15] =  274;
  cost[1,21,15] =  168;
  cost[2,0,15] =  134;
  cost[2,1,15] =  454;
  cost[2,2,15] =  0;
  cost[2,3,15] =  103;
  cost[2,4,15] =  207;
  cost[2,5,15] =  392;
  cost[2,6,15] =  293;
  cost[2,7,15] =  240;
  cost[2,8,15] =  370;
  cost[2,9,15] =  76;
  cost[2,10,15] =  260;
  cost[2,11,15] =  223;
  cost[2,12,15] =  303;
  cost[2,13,15] =  230;
  cost[2,14,15] =  312;
  cost[2,15,15] =  88;
  cost[2,16,15] =  133;
  cost[2,17,15] =  420;
  cost[2,18,15] =  247;
  cost[2,19,15] =  165;
  cost[2,20,15] =  56;
  cost[2,21,15] =  116;
  cost[3,0,15] =  59;
  cost[3,1,15] =  89;
  cost[3,2,15] =  103;
  cost[3,3,15] =  0;
  cost[3,4,15] =  311;
  cost[3,5,15] =  44;
  cost[3,6,15] =  9;
  cost[3,7,15] =  287;
  cost[3,8,15] =  273;
  cost[3,9,15] =  364;
  cost[3,10,15] =  340;
  cost[3,11,15] =  26;
  cost[3,12,15] =  154;
  cost[3,13,15] =  24;
  cost[3,14,15] =  371;
  cost[3,15,15] =  258;
  cost[3,16,15] =  232;
  cost[3,17,15] =  280;
  cost[3,18,15] =  67;
  cost[3,19,15] =  473;
  cost[3,20,15] =  167;
  cost[3,21,15] =  144;
  cost[4,0,15] =  99;
  cost[4,1,15] =  268;
  cost[4,2,15] =  207;
  cost[4,3,15] =  311;
  cost[4,4,15] =  0;
  cost[4,5,15] =  390;
  cost[4,6,15] =  447;
  cost[4,7,15] =  480;
  cost[4,8,15] =  219;
  cost[4,9,15] =  52;
  cost[4,10,15] =  129;
  cost[4,11,15] =  155;
  cost[4,12,15] =  299;
  cost[4,13,15] =  294;
  cost[4,14,15] =  212;
  cost[4,15,15] =  416;
  cost[4,16,15] =  331;
  cost[4,17,15] =  39;
  cost[4,18,15] =  460;
  cost[4,19,15] =  341;
  cost[4,20,15] =  327;
  cost[4,21,15] =  249;
  cost[5,0,15] =  205;
  cost[5,1,15] =  386;
  cost[5,2,15] =  392;
  cost[5,3,15] =  44;
  cost[5,4,15] =  390;
  cost[5,5,15] =  0;
  cost[5,6,15] =  183;
  cost[5,7,15] =  276;
  cost[5,8,15] =  376;
  cost[5,9,15] =  208;
  cost[5,10,15] =  164;
  cost[5,11,15] =  150;
  cost[5,12,15] =  440;
  cost[5,13,15] =  444;
  cost[5,14,15] =  218;
  cost[5,15,15] =  430;
  cost[5,16,15] =  128;
  cost[5,17,15] =  362;
  cost[5,18,15] =  196;
  cost[5,19,15] =  34;
  cost[5,20,15] =  326;
  cost[5,21,15] =  192;
  cost[6,0,15] =  301;
  cost[6,1,15] =  107;
  cost[6,2,15] =  293;
  cost[6,3,15] =  9;
  cost[6,4,15] =  447;
  cost[6,5,15] =  183;
  cost[6,6,15] =  0;
  cost[6,7,15] =  378;
  cost[6,8,15] =  321;
  cost[6,9,15] =  409;
  cost[6,10,15] =  194;
  cost[6,11,15] =  132;
  cost[6,12,15] =  137;
  cost[6,13,15] =  126;
  cost[6,14,15] =  463;
  cost[6,15,15] =  177;
  cost[6,16,15] =  103;
  cost[6,17,15] =  320;
  cost[6,18,15] =  20;
  cost[6,19,15] =  353;
  cost[6,20,15] =  58;
  cost[6,21,15] =  203;
  cost[7,0,15] =  382;
  cost[7,1,15] =  159;
  cost[7,2,15] =  240;
  cost[7,3,15] =  287;
  cost[7,4,15] =  480;
  cost[7,5,15] =  276;
  cost[7,6,15] =  378;
  cost[7,7,15] =  0;
  cost[7,8,15] =  434;
  cost[7,9,15] =  412;
  cost[7,10,15] =  310;
  cost[7,11,15] =  100;
  cost[7,12,15] =  369;
  cost[7,13,15] =  271;
  cost[7,14,15] =  319;
  cost[7,15,15] =  315;
  cost[7,16,15] =  399;
  cost[7,17,15] =  197;
  cost[7,18,15] =  27;
  cost[7,19,15] =  433;
  cost[7,20,15] =  40;
  cost[7,21,15] =  219;
  cost[8,0,15] =  76;
  cost[8,1,15] =  31;
  cost[8,2,15] =  370;
  cost[8,3,15] =  273;
  cost[8,4,15] =  219;
  cost[8,5,15] =  376;
  cost[8,6,15] =  321;
  cost[8,7,15] =  434;
  cost[8,8,15] =  0;
  cost[8,9,15] =  419;
  cost[8,10,15] =  57;
  cost[8,11,15] =  129;
  cost[8,12,15] =  129;
  cost[8,13,15] =  189;
  cost[8,14,15] =  267;
  cost[8,15,15] =  256;
  cost[8,16,15] =  169;
  cost[8,17,15] =  444;
  cost[8,18,15] =  360;
  cost[8,19,15] =  6;
  cost[8,20,15] =  465;
  cost[8,21,15] =  229;
  cost[9,0,15] =  9;
  cost[9,1,15] =  120;
  cost[9,2,15] =  76;
  cost[9,3,15] =  364;
  cost[9,4,15] =  52;
  cost[9,5,15] =  208;
  cost[9,6,15] =  409;
  cost[9,7,15] =  412;
  cost[9,8,15] =  419;
  cost[9,9,15] =  0;
  cost[9,10,15] =  185;
  cost[9,11,15] =  375;
  cost[9,12,15] =  14;
  cost[9,13,15] =  113;
  cost[9,14,15] =  201;
  cost[9,15,15] =  115;
  cost[9,16,15] =  483;
  cost[9,17,15] =  472;
  cost[9,18,15] =  434;
  cost[9,19,15] =  315;
  cost[9,20,15] =  388;
  cost[9,21,15] =  148;
  cost[10,0,15] =  403;
  cost[10,1,15] =  352;
  cost[10,2,15] =  260;
  cost[10,3,15] =  340;
  cost[10,4,15] =  129;
  cost[10,5,15] =  164;
  cost[10,6,15] =  194;
  cost[10,7,15] =  310;
  cost[10,8,15] =  57;
  cost[10,9,15] =  185;
  cost[10,10,15] =  0;
  cost[10,11,15] =  338;
  cost[10,12,15] =  189;
  cost[10,13,15] =  78;
  cost[10,14,15] =  58;
  cost[10,15,15] =  124;
  cost[10,16,15] =  136;
  cost[10,17,15] =  187;
  cost[10,18,15] =  254;
  cost[10,19,15] =  325;
  cost[10,20,15] =  455;
  cost[10,21,15] =  27;
  cost[11,0,15] =  116;
  cost[11,1,15] =  356;
  cost[11,2,15] =  223;
  cost[11,3,15] =  26;
  cost[11,4,15] =  155;
  cost[11,5,15] =  150;
  cost[11,6,15] =  132;
  cost[11,7,15] =  100;
  cost[11,8,15] =  129;
  cost[11,9,15] =  375;
  cost[11,10,15] =  338;
  cost[11,11,15] =  0;
  cost[11,12,15] =  416;
  cost[11,13,15] =  387;
  cost[11,14,15] =  17;
  cost[11,15,15] =  397;
  cost[11,16,15] =  133;
  cost[11,17,15] =  81;
  cost[11,18,15] =  99;
  cost[11,19,15] =  25;
  cost[11,20,15] =  96;
  cost[11,21,15] =  213;
  cost[12,0,15] =  106;
  cost[12,1,15] =  255;
  cost[12,2,15] =  303;
  cost[12,3,15] =  154;
  cost[12,4,15] =  299;
  cost[12,5,15] =  440;
  cost[12,6,15] =  137;
  cost[12,7,15] =  369;
  cost[12,8,15] =  129;
  cost[12,9,15] =  14;
  cost[12,10,15] =  189;
  cost[12,11,15] =  416;
  cost[12,12,15] =  0;
  cost[12,13,15] =  211;
  cost[12,14,15] =  212;
  cost[12,15,15] =  215;
  cost[12,16,15] =  162;
  cost[12,17,15] =  43;
  cost[12,18,15] =  120;
  cost[12,19,15] =  310;
  cost[12,20,15] =  386;
  cost[12,21,15] =  458;
  cost[13,0,15] =  313;
  cost[13,1,15] =  411;
  cost[13,2,15] =  230;
  cost[13,3,15] =  24;
  cost[13,4,15] =  294;
  cost[13,5,15] =  444;
  cost[13,6,15] =  126;
  cost[13,7,15] =  271;
  cost[13,8,15] =  189;
  cost[13,9,15] =  113;
  cost[13,10,15] =  78;
  cost[13,11,15] =  387;
  cost[13,12,15] =  211;
  cost[13,13,15] =  0;
  cost[13,14,15] =  465;
  cost[13,15,15] =  32;
  cost[13,16,15] =  140;
  cost[13,17,15] =  117;
  cost[13,18,15] =  220;
  cost[13,19,15] =  394;
  cost[13,20,15] =  443;
  cost[13,21,15] =  191;
  cost[14,0,15] =  38;
  cost[14,1,15] =  456;
  cost[14,2,15] =  312;
  cost[14,3,15] =  371;
  cost[14,4,15] =  212;
  cost[14,5,15] =  218;
  cost[14,6,15] =  463;
  cost[14,7,15] =  319;
  cost[14,8,15] =  267;
  cost[14,9,15] =  201;
  cost[14,10,15] =  58;
  cost[14,11,15] =  17;
  cost[14,12,15] =  212;
  cost[14,13,15] =  465;
  cost[14,14,15] =  0;
  cost[14,15,15] =  454;
  cost[14,16,15] =  123;
  cost[14,17,15] =  325;
  cost[14,18,15] =  471;
  cost[14,19,15] =  37;
  cost[14,20,15] =  458;
  cost[14,21,15] =  69;
  cost[15,0,15] =  48;
  cost[15,1,15] =  460;
  cost[15,2,15] =  88;
  cost[15,3,15] =  258;
  cost[15,4,15] =  416;
  cost[15,5,15] =  430;
  cost[15,6,15] =  177;
  cost[15,7,15] =  315;
  cost[15,8,15] =  256;
  cost[15,9,15] =  115;
  cost[15,10,15] =  124;
  cost[15,11,15] =  397;
  cost[15,12,15] =  215;
  cost[15,13,15] =  32;
  cost[15,14,15] =  454;
  cost[15,15,15] =  0;
  cost[15,16,15] =  483;
  cost[15,17,15] =  165;
  cost[15,18,15] =  350;
  cost[15,19,15] =  226;
  cost[15,20,15] =  377;
  cost[15,21,15] =  79;
  cost[16,0,15] =  189;
  cost[16,1,15] =  228;
  cost[16,2,15] =  133;
  cost[16,3,15] =  232;
  cost[16,4,15] =  331;
  cost[16,5,15] =  128;
  cost[16,6,15] =  103;
  cost[16,7,15] =  399;
  cost[16,8,15] =  169;
  cost[16,9,15] =  483;
  cost[16,10,15] =  136;
  cost[16,11,15] =  133;
  cost[16,12,15] =  162;
  cost[16,13,15] =  140;
  cost[16,14,15] =  123;
  cost[16,15,15] =  483;
  cost[16,16,15] =  0;
  cost[16,17,15] =  55;
  cost[16,18,15] =  122;
  cost[16,19,15] =  78;
  cost[16,20,15] =  366;
  cost[16,21,15] =  25;
  cost[17,0,15] =  33;
  cost[17,1,15] =  354;
  cost[17,2,15] =  420;
  cost[17,3,15] =  280;
  cost[17,4,15] =  39;
  cost[17,5,15] =  362;
  cost[17,6,15] =  320;
  cost[17,7,15] =  197;
  cost[17,8,15] =  444;
  cost[17,9,15] =  472;
  cost[17,10,15] =  187;
  cost[17,11,15] =  81;
  cost[17,12,15] =  43;
  cost[17,13,15] =  117;
  cost[17,14,15] =  325;
  cost[17,15,15] =  165;
  cost[17,16,15] =  55;
  cost[17,17,15] =  0;
  cost[17,18,15] =  382;
  cost[17,19,15] =  6;
  cost[17,20,15] =  85;
  cost[17,21,15] =  38;
  cost[18,0,15] =  461;
  cost[18,1,15] =  52;
  cost[18,2,15] =  247;
  cost[18,3,15] =  67;
  cost[18,4,15] =  460;
  cost[18,5,15] =  196;
  cost[18,6,15] =  20;
  cost[18,7,15] =  27;
  cost[18,8,15] =  360;
  cost[18,9,15] =  434;
  cost[18,10,15] =  254;
  cost[18,11,15] =  99;
  cost[18,12,15] =  120;
  cost[18,13,15] =  220;
  cost[18,14,15] =  471;
  cost[18,15,15] =  350;
  cost[18,16,15] =  122;
  cost[18,17,15] =  382;
  cost[18,18,15] =  0;
  cost[18,19,15] =  305;
  cost[18,20,15] =  432;
  cost[18,21,15] =  84;
  cost[19,0,15] =  267;
  cost[19,1,15] =  237;
  cost[19,2,15] =  165;
  cost[19,3,15] =  473;
  cost[19,4,15] =  341;
  cost[19,5,15] =  34;
  cost[19,6,15] =  353;
  cost[19,7,15] =  433;
  cost[19,8,15] =  6;
  cost[19,9,15] =  315;
  cost[19,10,15] =  325;
  cost[19,11,15] =  25;
  cost[19,12,15] =  310;
  cost[19,13,15] =  394;
  cost[19,14,15] =  37;
  cost[19,15,15] =  226;
  cost[19,16,15] =  78;
  cost[19,17,15] =  6;
  cost[19,18,15] =  305;
  cost[19,19,15] =  0;
  cost[19,20,15] =  370;
  cost[19,21,15] =  54;
  cost[20,0,15] =  19;
  cost[20,1,15] =  274;
  cost[20,2,15] =  56;
  cost[20,3,15] =  167;
  cost[20,4,15] =  327;
  cost[20,5,15] =  326;
  cost[20,6,15] =  58;
  cost[20,7,15] =  40;
  cost[20,8,15] =  465;
  cost[20,9,15] =  388;
  cost[20,10,15] =  455;
  cost[20,11,15] =  96;
  cost[20,12,15] =  386;
  cost[20,13,15] =  443;
  cost[20,14,15] =  458;
  cost[20,15,15] =  377;
  cost[20,16,15] =  366;
  cost[20,17,15] =  85;
  cost[20,18,15] =  432;
  cost[20,19,15] =  370;
  cost[20,20,15] =  0;
  cost[20,21,15] =  211;
  cost[21,0,15] =  336;
  cost[21,1,15] =  168;
  cost[21,2,15] =  116;
  cost[21,3,15] =  144;
  cost[21,4,15] =  249;
  cost[21,5,15] =  192;
  cost[21,6,15] =  203;
  cost[21,7,15] =  219;
  cost[21,8,15] =  229;
  cost[21,9,15] =  148;
  cost[21,10,15] =  27;
  cost[21,11,15] =  213;
  cost[21,12,15] =  458;
  cost[21,13,15] =  191;
  cost[21,14,15] =  69;
  cost[21,15,15] =  79;
  cost[21,16,15] =  25;
  cost[21,17,15] =  38;
  cost[21,18,15] =  84;
  cost[21,19,15] =  54;
  cost[21,20,15] =  211;
  cost[21,21,15] =  0;
  cost[0,0,16] =  0;
  cost[0,1,16] =  186;
  cost[0,2,16] =  112;
  cost[0,3,16] =  311;
  cost[0,4,16] =  186;
  cost[0,5,16] =  278;
  cost[0,6,16] =  177;
  cost[0,7,16] =  413;
  cost[0,8,16] =  171;
  cost[0,9,16] =  257;
  cost[0,10,16] =  371;
  cost[0,11,16] =  227;
  cost[0,12,16] =  379;
  cost[0,13,16] =  450;
  cost[0,14,16] =  110;
  cost[0,15,16] =  405;
  cost[0,16,16] =  19;
  cost[0,17,16] =  8;
  cost[0,18,16] =  412;
  cost[0,19,16] =  104;
  cost[0,20,16] =  47;
  cost[0,21,16] =  52;
  cost[1,0,16] =  186;
  cost[1,1,16] =  0;
  cost[1,2,16] =  480;
  cost[1,3,16] =  136;
  cost[1,4,16] =  422;
  cost[1,5,16] =  366;
  cost[1,6,16] =  191;
  cost[1,7,16] =  75;
  cost[1,8,16] =  94;
  cost[1,9,16] =  234;
  cost[1,10,16] =  249;
  cost[1,11,16] =  281;
  cost[1,12,16] =  346;
  cost[1,13,16] =  76;
  cost[1,14,16] =  467;
  cost[1,15,16] =  140;
  cost[1,16,16] =  254;
  cost[1,17,16] =  397;
  cost[1,18,16] =  312;
  cost[1,19,16] =  27;
  cost[1,20,16] =  284;
  cost[1,21,16] =  55;
  cost[2,0,16] =  112;
  cost[2,1,16] =  480;
  cost[2,2,16] =  0;
  cost[2,3,16] =  251;
  cost[2,4,16] =  165;
  cost[2,5,16] =  328;
  cost[2,6,16] =  271;
  cost[2,7,16] =  174;
  cost[2,8,16] =  257;
  cost[2,9,16] =  375;
  cost[2,10,16] =  221;
  cost[2,11,16] =  309;
  cost[2,12,16] =  301;
  cost[2,13,16] =  217;
  cost[2,14,16] =  446;
  cost[2,15,16] =  240;
  cost[2,16,16] =  100;
  cost[2,17,16] =  153;
  cost[2,18,16] =  315;
  cost[2,19,16] =  195;
  cost[2,20,16] =  387;
  cost[2,21,16] =  80;
  cost[3,0,16] =  311;
  cost[3,1,16] =  136;
  cost[3,2,16] =  251;
  cost[3,3,16] =  0;
  cost[3,4,16] =  250;
  cost[3,5,16] =  157;
  cost[3,6,16] =  460;
  cost[3,7,16] =  390;
  cost[3,8,16] =  412;
  cost[3,9,16] =  373;
  cost[3,10,16] =  218;
  cost[3,11,16] =  440;
  cost[3,12,16] =  174;
  cost[3,13,16] =  274;
  cost[3,14,16] =  363;
  cost[3,15,16] =  425;
  cost[3,16,16] =  440;
  cost[3,17,16] =  208;
  cost[3,18,16] =  213;
  cost[3,19,16] =  130;
  cost[3,20,16] =  465;
  cost[3,21,16] =  104;
  cost[4,0,16] =  186;
  cost[4,1,16] =  422;
  cost[4,2,16] =  165;
  cost[4,3,16] =  250;
  cost[4,4,16] =  0;
  cost[4,5,16] =  291;
  cost[4,6,16] =  406;
  cost[4,7,16] =  86;
  cost[4,8,16] =  254;
  cost[4,9,16] =  163;
  cost[4,10,16] =  186;
  cost[4,11,16] =  407;
  cost[4,12,16] =  478;
  cost[4,13,16] =  381;
  cost[4,14,16] =  311;
  cost[4,15,16] =  75;
  cost[4,16,16] =  374;
  cost[4,17,16] =  78;
  cost[4,18,16] =  233;
  cost[4,19,16] =  350;
  cost[4,20,16] =  468;
  cost[4,21,16] =  161;
  cost[5,0,16] =  278;
  cost[5,1,16] =  366;
  cost[5,2,16] =  328;
  cost[5,3,16] =  157;
  cost[5,4,16] =  291;
  cost[5,5,16] =  0;
  cost[5,6,16] =  203;
  cost[5,7,16] =  117;
  cost[5,8,16] =  414;
  cost[5,9,16] =  477;
  cost[5,10,16] =  481;
  cost[5,11,16] =  356;
  cost[5,12,16] =  434;
  cost[5,13,16] =  206;
  cost[5,14,16] =  85;
  cost[5,15,16] =  80;
  cost[5,16,16] =  188;
  cost[5,17,16] =  190;
  cost[5,18,16] =  433;
  cost[5,19,16] =  479;
  cost[5,20,16] =  113;
  cost[5,21,16] =  35;
  cost[6,0,16] =  177;
  cost[6,1,16] =  191;
  cost[6,2,16] =  271;
  cost[6,3,16] =  460;
  cost[6,4,16] =  406;
  cost[6,5,16] =  203;
  cost[6,6,16] =  0;
  cost[6,7,16] =  276;
  cost[6,8,16] =  222;
  cost[6,9,16] =  173;
  cost[6,10,16] =  271;
  cost[6,11,16] =  120;
  cost[6,12,16] =  1;
  cost[6,13,16] =  346;
  cost[6,14,16] =  10;
  cost[6,15,16] =  79;
  cost[6,16,16] =  96;
  cost[6,17,16] =  361;
  cost[6,18,16] =  64;
  cost[6,19,16] =  258;
  cost[6,20,16] =  117;
  cost[6,21,16] =  268;
  cost[7,0,16] =  413;
  cost[7,1,16] =  75;
  cost[7,2,16] =  174;
  cost[7,3,16] =  390;
  cost[7,4,16] =  86;
  cost[7,5,16] =  117;
  cost[7,6,16] =  276;
  cost[7,7,16] =  0;
  cost[7,8,16] =  48;
  cost[7,9,16] =  261;
  cost[7,10,16] =  373;
  cost[7,11,16] =  404;
  cost[7,12,16] =  212;
  cost[7,13,16] =  96;
  cost[7,14,16] =  5;
  cost[7,15,16] =  292;
  cost[7,16,16] =  284;
  cost[7,17,16] =  195;
  cost[7,18,16] =  242;
  cost[7,19,16] =  280;
  cost[7,20,16] =  309;
  cost[7,21,16] =  278;
  cost[8,0,16] =  171;
  cost[8,1,16] =  94;
  cost[8,2,16] =  257;
  cost[8,3,16] =  412;
  cost[8,4,16] =  254;
  cost[8,5,16] =  414;
  cost[8,6,16] =  222;
  cost[8,7,16] =  48;
  cost[8,8,16] =  0;
  cost[8,9,16] =  101;
  cost[8,10,16] =  16;
  cost[8,11,16] =  219;
  cost[8,12,16] =  372;
  cost[8,13,16] =  137;
  cost[8,14,16] =  221;
  cost[8,15,16] =  235;
  cost[8,16,16] =  147;
  cost[8,17,16] =  300;
  cost[8,18,16] =  331;
  cost[8,19,16] =  25;
  cost[8,20,16] =  365;
  cost[8,21,16] =  105;
  cost[9,0,16] =  257;
  cost[9,1,16] =  234;
  cost[9,2,16] =  375;
  cost[9,3,16] =  373;
  cost[9,4,16] =  163;
  cost[9,5,16] =  477;
  cost[9,6,16] =  173;
  cost[9,7,16] =  261;
  cost[9,8,16] =  101;
  cost[9,9,16] =  0;
  cost[9,10,16] =  149;
  cost[9,11,16] =  481;
  cost[9,12,16] =  191;
  cost[9,13,16] =  411;
  cost[9,14,16] =  371;
  cost[9,15,16] =  111;
  cost[9,16,16] =  139;
  cost[9,17,16] =  467;
  cost[9,18,16] =  117;
  cost[9,19,16] =  432;
  cost[9,20,16] =  268;
  cost[9,21,16] =  313;
  cost[10,0,16] =  371;
  cost[10,1,16] =  249;
  cost[10,2,16] =  221;
  cost[10,3,16] =  218;
  cost[10,4,16] =  186;
  cost[10,5,16] =  481;
  cost[10,6,16] =  271;
  cost[10,7,16] =  373;
  cost[10,8,16] =  16;
  cost[10,9,16] =  149;
  cost[10,10,16] =  0;
  cost[10,11,16] =  64;
  cost[10,12,16] =  138;
  cost[10,13,16] =  468;
  cost[10,14,16] =  110;
  cost[10,15,16] =  239;
  cost[10,16,16] =  1;
  cost[10,17,16] =  329;
  cost[10,18,16] =  128;
  cost[10,19,16] =  138;
  cost[10,20,16] =  67;
  cost[10,21,16] =  363;
  cost[11,0,16] =  227;
  cost[11,1,16] =  281;
  cost[11,2,16] =  309;
  cost[11,3,16] =  440;
  cost[11,4,16] =  407;
  cost[11,5,16] =  356;
  cost[11,6,16] =  120;
  cost[11,7,16] =  404;
  cost[11,8,16] =  219;
  cost[11,9,16] =  481;
  cost[11,10,16] =  64;
  cost[11,11,16] =  0;
  cost[11,12,16] =  367;
  cost[11,13,16] =  210;
  cost[11,14,16] =  311;
  cost[11,15,16] =  249;
  cost[11,16,16] =  316;
  cost[11,17,16] =  455;
  cost[11,18,16] =  398;
  cost[11,19,16] =  313;
  cost[11,20,16] =  162;
  cost[11,21,16] =  326;
  cost[12,0,16] =  379;
  cost[12,1,16] =  346;
  cost[12,2,16] =  301;
  cost[12,3,16] =  174;
  cost[12,4,16] =  478;
  cost[12,5,16] =  434;
  cost[12,6,16] =  1;
  cost[12,7,16] =  212;
  cost[12,8,16] =  372;
  cost[12,9,16] =  191;
  cost[12,10,16] =  138;
  cost[12,11,16] =  367;
  cost[12,12,16] =  0;
  cost[12,13,16] =  274;
  cost[12,14,16] =  465;
  cost[12,15,16] =  185;
  cost[12,16,16] =  391;
  cost[12,17,16] =  413;
  cost[12,18,16] =  453;
  cost[12,19,16] =  220;
  cost[12,20,16] =  120;
  cost[12,21,16] =  33;
  cost[13,0,16] =  450;
  cost[13,1,16] =  76;
  cost[13,2,16] =  217;
  cost[13,3,16] =  274;
  cost[13,4,16] =  381;
  cost[13,5,16] =  206;
  cost[13,6,16] =  346;
  cost[13,7,16] =  96;
  cost[13,8,16] =  137;
  cost[13,9,16] =  411;
  cost[13,10,16] =  468;
  cost[13,11,16] =  210;
  cost[13,12,16] =  274;
  cost[13,13,16] =  0;
  cost[13,14,16] =  104;
  cost[13,15,16] =  144;
  cost[13,16,16] =  114;
  cost[13,17,16] =  106;
  cost[13,18,16] =  474;
  cost[13,19,16] =  242;
  cost[13,20,16] =  244;
  cost[13,21,16] =  57;
  cost[14,0,16] =  110;
  cost[14,1,16] =  467;
  cost[14,2,16] =  446;
  cost[14,3,16] =  363;
  cost[14,4,16] =  311;
  cost[14,5,16] =  85;
  cost[14,6,16] =  10;
  cost[14,7,16] =  5;
  cost[14,8,16] =  221;
  cost[14,9,16] =  371;
  cost[14,10,16] =  110;
  cost[14,11,16] =  311;
  cost[14,12,16] =  465;
  cost[14,13,16] =  104;
  cost[14,14,16] =  0;
  cost[14,15,16] =  46;
  cost[14,16,16] =  425;
  cost[14,17,16] =  332;
  cost[14,18,16] =  358;
  cost[14,19,16] =  190;
  cost[14,20,16] =  164;
  cost[14,21,16] =  329;
  cost[15,0,16] =  405;
  cost[15,1,16] =  140;
  cost[15,2,16] =  240;
  cost[15,3,16] =  425;
  cost[15,4,16] =  75;
  cost[15,5,16] =  80;
  cost[15,6,16] =  79;
  cost[15,7,16] =  292;
  cost[15,8,16] =  235;
  cost[15,9,16] =  111;
  cost[15,10,16] =  239;
  cost[15,11,16] =  249;
  cost[15,12,16] =  185;
  cost[15,13,16] =  144;
  cost[15,14,16] =  46;
  cost[15,15,16] =  0;
  cost[15,16,16] =  478;
  cost[15,17,16] =  7;
  cost[15,18,16] =  431;
  cost[15,19,16] =  196;
  cost[15,20,16] =  281;
  cost[15,21,16] =  413;
  cost[16,0,16] =  19;
  cost[16,1,16] =  254;
  cost[16,2,16] =  100;
  cost[16,3,16] =  440;
  cost[16,4,16] =  374;
  cost[16,5,16] =  188;
  cost[16,6,16] =  96;
  cost[16,7,16] =  284;
  cost[16,8,16] =  147;
  cost[16,9,16] =  139;
  cost[16,10,16] =  1;
  cost[16,11,16] =  316;
  cost[16,12,16] =  391;
  cost[16,13,16] =  114;
  cost[16,14,16] =  425;
  cost[16,15,16] =  478;
  cost[16,16,16] =  0;
  cost[16,17,16] =  189;
  cost[16,18,16] =  342;
  cost[16,19,16] =  350;
  cost[16,20,16] =  410;
  cost[16,21,16] =  463;
  cost[17,0,16] =  8;
  cost[17,1,16] =  397;
  cost[17,2,16] =  153;
  cost[17,3,16] =  208;
  cost[17,4,16] =  78;
  cost[17,5,16] =  190;
  cost[17,6,16] =  361;
  cost[17,7,16] =  195;
  cost[17,8,16] =  300;
  cost[17,9,16] =  467;
  cost[17,10,16] =  329;
  cost[17,11,16] =  455;
  cost[17,12,16] =  413;
  cost[17,13,16] =  106;
  cost[17,14,16] =  332;
  cost[17,15,16] =  7;
  cost[17,16,16] =  189;
  cost[17,17,16] =  0;
  cost[17,18,16] =  285;
  cost[17,19,16] =  84;
  cost[17,20,16] =  44;
  cost[17,21,16] =  400;
  cost[18,0,16] =  412;
  cost[18,1,16] =  312;
  cost[18,2,16] =  315;
  cost[18,3,16] =  213;
  cost[18,4,16] =  233;
  cost[18,5,16] =  433;
  cost[18,6,16] =  64;
  cost[18,7,16] =  242;
  cost[18,8,16] =  331;
  cost[18,9,16] =  117;
  cost[18,10,16] =  128;
  cost[18,11,16] =  398;
  cost[18,12,16] =  453;
  cost[18,13,16] =  474;
  cost[18,14,16] =  358;
  cost[18,15,16] =  431;
  cost[18,16,16] =  342;
  cost[18,17,16] =  285;
  cost[18,18,16] =  0;
  cost[18,19,16] =  34;
  cost[18,20,16] =  159;
  cost[18,21,16] =  434;
  cost[19,0,16] =  104;
  cost[19,1,16] =  27;
  cost[19,2,16] =  195;
  cost[19,3,16] =  130;
  cost[19,4,16] =  350;
  cost[19,5,16] =  479;
  cost[19,6,16] =  258;
  cost[19,7,16] =  280;
  cost[19,8,16] =  25;
  cost[19,9,16] =  432;
  cost[19,10,16] =  138;
  cost[19,11,16] =  313;
  cost[19,12,16] =  220;
  cost[19,13,16] =  242;
  cost[19,14,16] =  190;
  cost[19,15,16] =  196;
  cost[19,16,16] =  350;
  cost[19,17,16] =  84;
  cost[19,18,16] =  34;
  cost[19,19,16] =  0;
  cost[19,20,16] =  281;
  cost[19,21,16] =  481;
  cost[20,0,16] =  47;
  cost[20,1,16] =  284;
  cost[20,2,16] =  387;
  cost[20,3,16] =  465;
  cost[20,4,16] =  468;
  cost[20,5,16] =  113;
  cost[20,6,16] =  117;
  cost[20,7,16] =  309;
  cost[20,8,16] =  365;
  cost[20,9,16] =  268;
  cost[20,10,16] =  67;
  cost[20,11,16] =  162;
  cost[20,12,16] =  120;
  cost[20,13,16] =  244;
  cost[20,14,16] =  164;
  cost[20,15,16] =  281;
  cost[20,16,16] =  410;
  cost[20,17,16] =  44;
  cost[20,18,16] =  159;
  cost[20,19,16] =  281;
  cost[20,20,16] =  0;
  cost[20,21,16] =  129;
  cost[21,0,16] =  52;
  cost[21,1,16] =  55;
  cost[21,2,16] =  80;
  cost[21,3,16] =  104;
  cost[21,4,16] =  161;
  cost[21,5,16] =  35;
  cost[21,6,16] =  268;
  cost[21,7,16] =  278;
  cost[21,8,16] =  105;
  cost[21,9,16] =  313;
  cost[21,10,16] =  363;
  cost[21,11,16] =  326;
  cost[21,12,16] =  33;
  cost[21,13,16] =  57;
  cost[21,14,16] =  329;
  cost[21,15,16] =  413;
  cost[21,16,16] =  463;
  cost[21,17,16] =  400;
  cost[21,18,16] =  434;
  cost[21,19,16] =  481;
  cost[21,20,16] =  129;
  cost[21,21,16] =  0;
  cost[0,0,17] =  0;
  cost[0,1,17] =  294;
  cost[0,2,17] =  201;
  cost[0,3,17] =  329;
  cost[0,4,17] =  289;
  cost[0,5,17] =  209;
  cost[0,6,17] =  276;
  cost[0,7,17] =  1;
  cost[0,8,17] =  6;
  cost[0,9,17] =  206;
  cost[0,10,17] =  382;
  cost[0,11,17] =  196;
  cost[0,12,17] =  65;
  cost[0,13,17] =  249;
  cost[0,14,17] =  122;
  cost[0,15,17] =  44;
  cost[0,16,17] =  150;
  cost[0,17,17] =  407;
  cost[0,18,17] =  128;
  cost[0,19,17] =  195;
  cost[0,20,17] =  323;
  cost[0,21,17] =  319;
  cost[1,0,17] =  294;
  cost[1,1,17] =  0;
  cost[1,2,17] =  482;
  cost[1,3,17] =  270;
  cost[1,4,17] =  322;
  cost[1,5,17] =  279;
  cost[1,6,17] =  267;
  cost[1,7,17] =  355;
  cost[1,8,17] =  409;
  cost[1,9,17] =  139;
  cost[1,10,17] =  95;
  cost[1,11,17] =  220;
  cost[1,12,17] =  340;
  cost[1,13,17] =  424;
  cost[1,14,17] =  25;
  cost[1,15,17] =  65;
  cost[1,16,17] =  217;
  cost[1,17,17] =  27;
  cost[1,18,17] =  72;
  cost[1,19,17] =  423;
  cost[1,20,17] =  410;
  cost[1,21,17] =  268;
  cost[2,0,17] =  201;
  cost[2,1,17] =  482;
  cost[2,2,17] =  0;
  cost[2,3,17] =  176;
  cost[2,4,17] =  391;
  cost[2,5,17] =  49;
  cost[2,6,17] =  326;
  cost[2,7,17] =  314;
  cost[2,8,17] =  178;
  cost[2,9,17] =  37;
  cost[2,10,17] =  154;
  cost[2,11,17] =  13;
  cost[2,12,17] =  268;
  cost[2,13,17] =  153;
  cost[2,14,17] =  283;
  cost[2,15,17] =  106;
  cost[2,16,17] =  433;
  cost[2,17,17] =  67;
  cost[2,18,17] =  462;
  cost[2,19,17] =  359;
  cost[2,20,17] =  206;
  cost[2,21,17] =  73;
  cost[3,0,17] =  329;
  cost[3,1,17] =  270;
  cost[3,2,17] =  176;
  cost[3,3,17] =  0;
  cost[3,4,17] =  63;
  cost[3,5,17] =  14;
  cost[3,6,17] =  121;
  cost[3,7,17] =  128;
  cost[3,8,17] =  231;
  cost[3,9,17] =  149;
  cost[3,10,17] =  201;
  cost[3,11,17] =  171;
  cost[3,12,17] =  75;
  cost[3,13,17] =  470;
  cost[3,14,17] =  176;
  cost[3,15,17] =  252;
  cost[3,16,17] =  377;
  cost[3,17,17] =  225;
  cost[3,18,17] =  94;
  cost[3,19,17] =  208;
  cost[3,20,17] =  403;
  cost[3,21,17] =  132;
  cost[4,0,17] =  289;
  cost[4,1,17] =  322;
  cost[4,2,17] =  391;
  cost[4,3,17] =  63;
  cost[4,4,17] =  0;
  cost[4,5,17] =  417;
  cost[4,6,17] =  400;
  cost[4,7,17] =  32;
  cost[4,8,17] =  216;
  cost[4,9,17] =  23;
  cost[4,10,17] =  466;
  cost[4,11,17] =  284;
  cost[4,12,17] =  1;
  cost[4,13,17] =  341;
  cost[4,14,17] =  6;
  cost[4,15,17] =  74;
  cost[4,16,17] =  437;
  cost[4,17,17] =  70;
  cost[4,18,17] =  89;
  cost[4,19,17] =  75;
  cost[4,20,17] =  199;
  cost[4,21,17] =  321;
  cost[5,0,17] =  209;
  cost[5,1,17] =  279;
  cost[5,2,17] =  49;
  cost[5,3,17] =  14;
  cost[5,4,17] =  417;
  cost[5,5,17] =  0;
  cost[5,6,17] =  400;
  cost[5,7,17] =  8;
  cost[5,8,17] =  300;
  cost[5,9,17] =  386;
  cost[5,10,17] =  184;
  cost[5,11,17] =  68;
  cost[5,12,17] =  280;
  cost[5,13,17] =  410;
  cost[5,14,17] =  163;
  cost[5,15,17] =  5;
  cost[5,16,17] =  330;
  cost[5,17,17] =  296;
  cost[5,18,17] =  368;
  cost[5,19,17] =  263;
  cost[5,20,17] =  213;
  cost[5,21,17] =  401;
  cost[6,0,17] =  276;
  cost[6,1,17] =  267;
  cost[6,2,17] =  326;
  cost[6,3,17] =  121;
  cost[6,4,17] =  400;
  cost[6,5,17] =  400;
  cost[6,6,17] =  0;
  cost[6,7,17] =  236;
  cost[6,8,17] =  383;
  cost[6,9,17] =  280;
  cost[6,10,17] =  238;
  cost[6,11,17] =  241;
  cost[6,12,17] =  287;
  cost[6,13,17] =  313;
  cost[6,14,17] =  195;
  cost[6,15,17] =  358;
  cost[6,16,17] =  402;
  cost[6,17,17] =  271;
  cost[6,18,17] =  73;
  cost[6,19,17] =  239;
  cost[6,20,17] =  12;
  cost[6,21,17] =  473;
  cost[7,0,17] =  1;
  cost[7,1,17] =  355;
  cost[7,2,17] =  314;
  cost[7,3,17] =  128;
  cost[7,4,17] =  32;
  cost[7,5,17] =  8;
  cost[7,6,17] =  236;
  cost[7,7,17] =  0;
  cost[7,8,17] =  313;
  cost[7,9,17] =  376;
  cost[7,10,17] =  433;
  cost[7,11,17] =  382;
  cost[7,12,17] =  173;
  cost[7,13,17] =  359;
  cost[7,14,17] =  61;
  cost[7,15,17] =  178;
  cost[7,16,17] =  206;
  cost[7,17,17] =  358;
  cost[7,18,17] =  62;
  cost[7,19,17] =  469;
  cost[7,20,17] =  87;
  cost[7,21,17] =  464;
  cost[8,0,17] =  6;
  cost[8,1,17] =  409;
  cost[8,2,17] =  178;
  cost[8,3,17] =  231;
  cost[8,4,17] =  216;
  cost[8,5,17] =  300;
  cost[8,6,17] =  383;
  cost[8,7,17] =  313;
  cost[8,8,17] =  0;
  cost[8,9,17] =  324;
  cost[8,10,17] =  364;
  cost[8,11,17] =  263;
  cost[8,12,17] =  78;
  cost[8,13,17] =  121;
  cost[8,14,17] =  67;
  cost[8,15,17] =  391;
  cost[8,16,17] =  317;
  cost[8,17,17] =  425;
  cost[8,18,17] =  309;
  cost[8,19,17] =  105;
  cost[8,20,17] =  14;
  cost[8,21,17] =  65;
  cost[9,0,17] =  206;
  cost[9,1,17] =  139;
  cost[9,2,17] =  37;
  cost[9,3,17] =  149;
  cost[9,4,17] =  23;
  cost[9,5,17] =  386;
  cost[9,6,17] =  280;
  cost[9,7,17] =  376;
  cost[9,8,17] =  324;
  cost[9,9,17] =  0;
  cost[9,10,17] =  4;
  cost[9,11,17] =  313;
  cost[9,12,17] =  430;
  cost[9,13,17] =  380;
  cost[9,14,17] =  262;
  cost[9,15,17] =  328;
  cost[9,16,17] =  69;
  cost[9,17,17] =  138;
  cost[9,18,17] =  390;
  cost[9,19,17] =  248;
  cost[9,20,17] =  344;
  cost[9,21,17] =  264;
  cost[10,0,17] =  382;
  cost[10,1,17] =  95;
  cost[10,2,17] =  154;
  cost[10,3,17] =  201;
  cost[10,4,17] =  466;
  cost[10,5,17] =  184;
  cost[10,6,17] =  238;
  cost[10,7,17] =  433;
  cost[10,8,17] =  364;
  cost[10,9,17] =  4;
  cost[10,10,17] =  0;
  cost[10,11,17] =  329;
  cost[10,12,17] =  352;
  cost[10,13,17] =  290;
  cost[10,14,17] =  312;
  cost[10,15,17] =  192;
  cost[10,16,17] =  170;
  cost[10,17,17] =  91;
  cost[10,18,17] =  270;
  cost[10,19,17] =  292;
  cost[10,20,17] =  159;
  cost[10,21,17] =  178;
  cost[11,0,17] =  196;
  cost[11,1,17] =  220;
  cost[11,2,17] =  13;
  cost[11,3,17] =  171;
  cost[11,4,17] =  284;
  cost[11,5,17] =  68;
  cost[11,6,17] =  241;
  cost[11,7,17] =  382;
  cost[11,8,17] =  263;
  cost[11,9,17] =  313;
  cost[11,10,17] =  329;
  cost[11,11,17] =  0;
  cost[11,12,17] =  100;
  cost[11,13,17] =  4;
  cost[11,14,17] =  231;
  cost[11,15,17] =  114;
  cost[11,16,17] =  69;
  cost[11,17,17] =  349;
  cost[11,18,17] =  118;
  cost[11,19,17] =  383;
  cost[11,20,17] =  296;
  cost[11,21,17] =  15;
  cost[12,0,17] =  65;
  cost[12,1,17] =  340;
  cost[12,2,17] =  268;
  cost[12,3,17] =  75;
  cost[12,4,17] =  1;
  cost[12,5,17] =  280;
  cost[12,6,17] =  287;
  cost[12,7,17] =  173;
  cost[12,8,17] =  78;
  cost[12,9,17] =  430;
  cost[12,10,17] =  352;
  cost[12,11,17] =  100;
  cost[12,12,17] =  0;
  cost[12,13,17] =  141;
  cost[12,14,17] =  85;
  cost[12,15,17] =  299;
  cost[12,16,17] =  47;
  cost[12,17,17] =  333;
  cost[12,18,17] =  159;
  cost[12,19,17] =  312;
  cost[12,20,17] =  160;
  cost[12,21,17] =  5;
  cost[13,0,17] =  249;
  cost[13,1,17] =  424;
  cost[13,2,17] =  153;
  cost[13,3,17] =  470;
  cost[13,4,17] =  341;
  cost[13,5,17] =  410;
  cost[13,6,17] =  313;
  cost[13,7,17] =  359;
  cost[13,8,17] =  121;
  cost[13,9,17] =  380;
  cost[13,10,17] =  290;
  cost[13,11,17] =  4;
  cost[13,12,17] =  141;
  cost[13,13,17] =  0;
  cost[13,14,17] =  451;
  cost[13,15,17] =  318;
  cost[13,16,17] =  373;
  cost[13,17,17] =  138;
  cost[13,18,17] =  409;
  cost[13,19,17] =  160;
  cost[13,20,17] =  431;
  cost[13,21,17] =  84;
  cost[14,0,17] =  122;
  cost[14,1,17] =  25;
  cost[14,2,17] =  283;
  cost[14,3,17] =  176;
  cost[14,4,17] =  6;
  cost[14,5,17] =  163;
  cost[14,6,17] =  195;
  cost[14,7,17] =  61;
  cost[14,8,17] =  67;
  cost[14,9,17] =  262;
  cost[14,10,17] =  312;
  cost[14,11,17] =  231;
  cost[14,12,17] =  85;
  cost[14,13,17] =  451;
  cost[14,14,17] =  0;
  cost[14,15,17] =  74;
  cost[14,16,17] =  185;
  cost[14,17,17] =  343;
  cost[14,18,17] =  305;
  cost[14,19,17] =  299;
  cost[14,20,17] =  412;
  cost[14,21,17] =  171;
  cost[15,0,17] =  44;
  cost[15,1,17] =  65;
  cost[15,2,17] =  106;
  cost[15,3,17] =  252;
  cost[15,4,17] =  74;
  cost[15,5,17] =  5;
  cost[15,6,17] =  358;
  cost[15,7,17] =  178;
  cost[15,8,17] =  391;
  cost[15,9,17] =  328;
  cost[15,10,17] =  192;
  cost[15,11,17] =  114;
  cost[15,12,17] =  299;
  cost[15,13,17] =  318;
  cost[15,14,17] =  74;
  cost[15,15,17] =  0;
  cost[15,16,17] =  311;
  cost[15,17,17] =  467;
  cost[15,18,17] =  434;
  cost[15,19,17] =  473;
  cost[15,20,17] =  124;
  cost[15,21,17] =  36;
  cost[16,0,17] =  150;
  cost[16,1,17] =  217;
  cost[16,2,17] =  433;
  cost[16,3,17] =  377;
  cost[16,4,17] =  437;
  cost[16,5,17] =  330;
  cost[16,6,17] =  402;
  cost[16,7,17] =  206;
  cost[16,8,17] =  317;
  cost[16,9,17] =  69;
  cost[16,10,17] =  170;
  cost[16,11,17] =  69;
  cost[16,12,17] =  47;
  cost[16,13,17] =  373;
  cost[16,14,17] =  185;
  cost[16,15,17] =  311;
  cost[16,16,17] =  0;
  cost[16,17,17] =  172;
  cost[16,18,17] =  369;
  cost[16,19,17] =  448;
  cost[16,20,17] =  1;
  cost[16,21,17] =  46;
  cost[17,0,17] =  407;
  cost[17,1,17] =  27;
  cost[17,2,17] =  67;
  cost[17,3,17] =  225;
  cost[17,4,17] =  70;
  cost[17,5,17] =  296;
  cost[17,6,17] =  271;
  cost[17,7,17] =  358;
  cost[17,8,17] =  425;
  cost[17,9,17] =  138;
  cost[17,10,17] =  91;
  cost[17,11,17] =  349;
  cost[17,12,17] =  333;
  cost[17,13,17] =  138;
  cost[17,14,17] =  343;
  cost[17,15,17] =  467;
  cost[17,16,17] =  172;
  cost[17,17,17] =  0;
  cost[17,18,17] =  181;
  cost[17,19,17] =  14;
  cost[17,20,17] =  288;
  cost[17,21,17] =  71;
  cost[18,0,17] =  128;
  cost[18,1,17] =  72;
  cost[18,2,17] =  462;
  cost[18,3,17] =  94;
  cost[18,4,17] =  89;
  cost[18,5,17] =  368;
  cost[18,6,17] =  73;
  cost[18,7,17] =  62;
  cost[18,8,17] =  309;
  cost[18,9,17] =  390;
  cost[18,10,17] =  270;
  cost[18,11,17] =  118;
  cost[18,12,17] =  159;
  cost[18,13,17] =  409;
  cost[18,14,17] =  305;
  cost[18,15,17] =  434;
  cost[18,16,17] =  369;
  cost[18,17,17] =  181;
  cost[18,18,17] =  0;
  cost[18,19,17] =  214;
  cost[18,20,17] =  231;
  cost[18,21,17] =  100;
  cost[19,0,17] =  195;
  cost[19,1,17] =  423;
  cost[19,2,17] =  359;
  cost[19,3,17] =  208;
  cost[19,4,17] =  75;
  cost[19,5,17] =  263;
  cost[19,6,17] =  239;
  cost[19,7,17] =  469;
  cost[19,8,17] =  105;
  cost[19,9,17] =  248;
  cost[19,10,17] =  292;
  cost[19,11,17] =  383;
  cost[19,12,17] =  312;
  cost[19,13,17] =  160;
  cost[19,14,17] =  299;
  cost[19,15,17] =  473;
  cost[19,16,17] =  448;
  cost[19,17,17] =  14;
  cost[19,18,17] =  214;
  cost[19,19,17] =  0;
  cost[19,20,17] =  86;
  cost[19,21,17] =  174;
  cost[20,0,17] =  323;
  cost[20,1,17] =  410;
  cost[20,2,17] =  206;
  cost[20,3,17] =  403;
  cost[20,4,17] =  199;
  cost[20,5,17] =  213;
  cost[20,6,17] =  12;
  cost[20,7,17] =  87;
  cost[20,8,17] =  14;
  cost[20,9,17] =  344;
  cost[20,10,17] =  159;
  cost[20,11,17] =  296;
  cost[20,12,17] =  160;
  cost[20,13,17] =  431;
  cost[20,14,17] =  412;
  cost[20,15,17] =  124;
  cost[20,16,17] =  1;
  cost[20,17,17] =  288;
  cost[20,18,17] =  231;
  cost[20,19,17] =  86;
  cost[20,20,17] =  0;
  cost[20,21,17] =  429;
  cost[21,0,17] =  319;
  cost[21,1,17] =  268;
  cost[21,2,17] =  73;
  cost[21,3,17] =  132;
  cost[21,4,17] =  321;
  cost[21,5,17] =  401;
  cost[21,6,17] =  473;
  cost[21,7,17] =  464;
  cost[21,8,17] =  65;
  cost[21,9,17] =  264;
  cost[21,10,17] =  178;
  cost[21,11,17] =  15;
  cost[21,12,17] =  5;
  cost[21,13,17] =  84;
  cost[21,14,17] =  171;
  cost[21,15,17] =  36;
  cost[21,16,17] =  46;
  cost[21,17,17] =  71;
  cost[21,18,17] =  100;
  cost[21,19,17] =  174;
  cost[21,20,17] =  429;
  cost[21,21,17] =  0;
  cost[0,0,18] =  0;
  cost[0,1,18] =  358;
  cost[0,2,18] =  168;
  cost[0,3,18] =  235;
  cost[0,4,18] =  185;
  cost[0,5,18] =  151;
  cost[0,6,18] =  185;
  cost[0,7,18] =  175;
  cost[0,8,18] =  276;
  cost[0,9,18] =  221;
  cost[0,10,18] =  464;
  cost[0,11,18] =  449;
  cost[0,12,18] =  107;
  cost[0,13,18] =  428;
  cost[0,14,18] =  450;
  cost[0,15,18] =  154;
  cost[0,16,18] =  398;
  cost[0,17,18] =  148;
  cost[0,18,18] =  168;
  cost[0,19,18] =  203;
  cost[0,20,18] =  219;
  cost[0,21,18] =  321;
  cost[1,0,18] =  358;
  cost[1,1,18] =  0;
  cost[1,2,18] =  450;
  cost[1,3,18] =  422;
  cost[1,4,18] =  232;
  cost[1,5,18] =  53;
  cost[1,6,18] =  113;
  cost[1,7,18] =  233;
  cost[1,8,18] =  482;
  cost[1,9,18] =  109;
  cost[1,10,18] =  49;
  cost[1,11,18] =  356;
  cost[1,12,18] =  277;
  cost[1,13,18] =  284;
  cost[1,14,18] =  58;
  cost[1,15,18] =  429;
  cost[1,16,18] =  470;
  cost[1,17,18] =  233;
  cost[1,18,18] =  222;
  cost[1,19,18] =  208;
  cost[1,20,18] =  213;
  cost[1,21,18] =  187;
  cost[2,0,18] =  168;
  cost[2,1,18] =  450;
  cost[2,2,18] =  0;
  cost[2,3,18] =  158;
  cost[2,4,18] =  153;
  cost[2,5,18] =  470;
  cost[2,6,18] =  73;
  cost[2,7,18] =  301;
  cost[2,8,18] =  155;
  cost[2,9,18] =  276;
  cost[2,10,18] =  36;
  cost[2,11,18] =  477;
  cost[2,12,18] =  209;
  cost[2,13,18] =  3;
  cost[2,14,18] =  416;
  cost[2,15,18] =  442;
  cost[2,16,18] =  56;
  cost[2,17,18] =  45;
  cost[2,18,18] =  191;
  cost[2,19,18] =  55;
  cost[2,20,18] =  155;
  cost[2,21,18] =  241;
  cost[3,0,18] =  235;
  cost[3,1,18] =  422;
  cost[3,2,18] =  158;
  cost[3,3,18] =  0;
  cost[3,4,18] =  433;
  cost[3,5,18] =  41;
  cost[3,6,18] =  470;
  cost[3,7,18] =  378;
  cost[3,8,18] =  28;
  cost[3,9,18] =  219;
  cost[3,10,18] =  116;
  cost[3,11,18] =  236;
  cost[3,12,18] =  433;
  cost[3,13,18] =  304;
  cost[3,14,18] =  69;
  cost[3,15,18] =  108;
  cost[3,16,18] =  457;
  cost[3,17,18] =  56;
  cost[3,18,18] =  181;
  cost[3,19,18] =  275;
  cost[3,20,18] =  211;
  cost[3,21,18] =  458;
  cost[4,0,18] =  185;
  cost[4,1,18] =  232;
  cost[4,2,18] =  153;
  cost[4,3,18] =  433;
  cost[4,4,18] =  0;
  cost[4,5,18] =  205;
  cost[4,6,18] =  184;
  cost[4,7,18] =  316;
  cost[4,8,18] =  137;
  cost[4,9,18] =  142;
  cost[4,10,18] =  372;
  cost[4,11,18] =  182;
  cost[4,12,18] =  334;
  cost[4,13,18] =  428;
  cost[4,14,18] =  338;
  cost[4,15,18] =  91;
  cost[4,16,18] =  355;
  cost[4,17,18] =  287;
  cost[4,18,18] =  133;
  cost[4,19,18] =  342;
  cost[4,20,18] =  181;
  cost[4,21,18] =  162;
  cost[5,0,18] =  151;
  cost[5,1,18] =  53;
  cost[5,2,18] =  470;
  cost[5,3,18] =  41;
  cost[5,4,18] =  205;
  cost[5,5,18] =  0;
  cost[5,6,18] =  298;
  cost[5,7,18] =  399;
  cost[5,8,18] =  27;
  cost[5,9,18] =  119;
  cost[5,10,18] =  468;
  cost[5,11,18] =  135;
  cost[5,12,18] =  92;
  cost[5,13,18] =  40;
  cost[5,14,18] =  316;
  cost[5,15,18] =  368;
  cost[5,16,18] =  252;
  cost[5,17,18] =  291;
  cost[5,18,18] =  196;
  cost[5,19,18] =  457;
  cost[5,20,18] =  475;
  cost[5,21,18] =  28;
  cost[6,0,18] =  185;
  cost[6,1,18] =  113;
  cost[6,2,18] =  73;
  cost[6,3,18] =  470;
  cost[6,4,18] =  184;
  cost[6,5,18] =  298;
  cost[6,6,18] =  0;
  cost[6,7,18] =  133;
  cost[6,8,18] =  401;
  cost[6,9,18] =  294;
  cost[6,10,18] =  468;
  cost[6,11,18] =  345;
  cost[6,12,18] =  148;
  cost[6,13,18] =  75;
  cost[6,14,18] =  217;
  cost[6,15,18] =  435;
  cost[6,16,18] =  209;
  cost[6,17,18] =  75;
  cost[6,18,18] =  133;
  cost[6,19,18] =  371;
  cost[6,20,18] =  153;
  cost[6,21,18] =  432;
  cost[7,0,18] =  175;
  cost[7,1,18] =  233;
  cost[7,2,18] =  301;
  cost[7,3,18] =  378;
  cost[7,4,18] =  316;
  cost[7,5,18] =  399;
  cost[7,6,18] =  133;
  cost[7,7,18] =  0;
  cost[7,8,18] =  180;
  cost[7,9,18] =  67;
  cost[7,10,18] =  270;
  cost[7,11,18] =  316;
  cost[7,12,18] =  160;
  cost[7,13,18] =  310;
  cost[7,14,18] =  149;
  cost[7,15,18] =  44;
  cost[7,16,18] =  78;
  cost[7,17,18] =  440;
  cost[7,18,18] =  240;
  cost[7,19,18] =  52;
  cost[7,20,18] =  431;
  cost[7,21,18] =  268;
  cost[8,0,18] =  276;
  cost[8,1,18] =  482;
  cost[8,2,18] =  155;
  cost[8,3,18] =  28;
  cost[8,4,18] =  137;
  cost[8,5,18] =  27;
  cost[8,6,18] =  401;
  cost[8,7,18] =  180;
  cost[8,8,18] =  0;
  cost[8,9,18] =  81;
  cost[8,10,18] =  186;
  cost[8,11,18] =  457;
  cost[8,12,18] =  65;
  cost[8,13,18] =  47;
  cost[8,14,18] =  121;
  cost[8,15,18] =  140;
  cost[8,16,18] =  265;
  cost[8,17,18] =  73;
  cost[8,18,18] =  350;
  cost[8,19,18] =  340;
  cost[8,20,18] =  206;
  cost[8,21,18] =  237;
  cost[9,0,18] =  221;
  cost[9,1,18] =  109;
  cost[9,2,18] =  276;
  cost[9,3,18] =  219;
  cost[9,4,18] =  142;
  cost[9,5,18] =  119;
  cost[9,6,18] =  294;
  cost[9,7,18] =  67;
  cost[9,8,18] =  81;
  cost[9,9,18] =  0;
  cost[9,10,18] =  154;
  cost[9,11,18] =  39;
  cost[9,12,18] =  190;
  cost[9,13,18] =  221;
  cost[9,14,18] =  310;
  cost[9,15,18] =  23;
  cost[9,16,18] =  381;
  cost[9,17,18] =  136;
  cost[9,18,18] =  172;
  cost[9,19,18] =  425;
  cost[9,20,18] =  215;
  cost[9,21,18] =  128;
  cost[10,0,18] =  464;
  cost[10,1,18] =  49;
  cost[10,2,18] =  36;
  cost[10,3,18] =  116;
  cost[10,4,18] =  372;
  cost[10,5,18] =  468;
  cost[10,6,18] =  468;
  cost[10,7,18] =  270;
  cost[10,8,18] =  186;
  cost[10,9,18] =  154;
  cost[10,10,18] =  0;
  cost[10,11,18] =  268;
  cost[10,12,18] =  76;
  cost[10,13,18] =  450;
  cost[10,14,18] =  431;
  cost[10,15,18] =  157;
  cost[10,16,18] =  152;
  cost[10,17,18] =  405;
  cost[10,18,18] =  222;
  cost[10,19,18] =  200;
  cost[10,20,18] =  43;
  cost[10,21,18] =  363;
  cost[11,0,18] =  449;
  cost[11,1,18] =  356;
  cost[11,2,18] =  477;
  cost[11,3,18] =  236;
  cost[11,4,18] =  182;
  cost[11,5,18] =  135;
  cost[11,6,18] =  345;
  cost[11,7,18] =  316;
  cost[11,8,18] =  457;
  cost[11,9,18] =  39;
  cost[11,10,18] =  268;
  cost[11,11,18] =  0;
  cost[11,12,18] =  116;
  cost[11,13,18] =  229;
  cost[11,14,18] =  322;
  cost[11,15,18] =  322;
  cost[11,16,18] =  466;
  cost[11,17,18] =  332;
  cost[11,18,18] =  476;
  cost[11,19,18] =  22;
  cost[11,20,18] =  39;
  cost[11,21,18] =  214;
  cost[12,0,18] =  107;
  cost[12,1,18] =  277;
  cost[12,2,18] =  209;
  cost[12,3,18] =  433;
  cost[12,4,18] =  334;
  cost[12,5,18] =  92;
  cost[12,6,18] =  148;
  cost[12,7,18] =  160;
  cost[12,8,18] =  65;
  cost[12,9,18] =  190;
  cost[12,10,18] =  76;
  cost[12,11,18] =  116;
  cost[12,12,18] =  0;
  cost[12,13,18] =  62;
  cost[12,14,18] =  111;
  cost[12,15,18] =  469;
  cost[12,16,18] =  234;
  cost[12,17,18] =  53;
  cost[12,18,18] =  201;
  cost[12,19,18] =  363;
  cost[12,20,18] =  235;
  cost[12,21,18] =  469;
  cost[13,0,18] =  428;
  cost[13,1,18] =  284;
  cost[13,2,18] =  3;
  cost[13,3,18] =  304;
  cost[13,4,18] =  428;
  cost[13,5,18] =  40;
  cost[13,6,18] =  75;
  cost[13,7,18] =  310;
  cost[13,8,18] =  47;
  cost[13,9,18] =  221;
  cost[13,10,18] =  450;
  cost[13,11,18] =  229;
  cost[13,12,18] =  62;
  cost[13,13,18] =  0;
  cost[13,14,18] =  202;
  cost[13,15,18] =  417;
  cost[13,16,18] =  113;
  cost[13,17,18] =  354;
  cost[13,18,18] =  338;
  cost[13,19,18] =  335;
  cost[13,20,18] =  71;
  cost[13,21,18] =  382;
  cost[14,0,18] =  450;
  cost[14,1,18] =  58;
  cost[14,2,18] =  416;
  cost[14,3,18] =  69;
  cost[14,4,18] =  338;
  cost[14,5,18] =  316;
  cost[14,6,18] =  217;
  cost[14,7,18] =  149;
  cost[14,8,18] =  121;
  cost[14,9,18] =  310;
  cost[14,10,18] =  431;
  cost[14,11,18] =  322;
  cost[14,12,18] =  111;
  cost[14,13,18] =  202;
  cost[14,14,18] =  0;
  cost[14,15,18] =  52;
  cost[14,16,18] =  14;
  cost[14,17,18] =  444;
  cost[14,18,18] =  375;
  cost[14,19,18] =  337;
  cost[14,20,18] =  427;
  cost[14,21,18] =  223;
  cost[15,0,18] =  154;
  cost[15,1,18] =  429;
  cost[15,2,18] =  442;
  cost[15,3,18] =  108;
  cost[15,4,18] =  91;
  cost[15,5,18] =  368;
  cost[15,6,18] =  435;
  cost[15,7,18] =  44;
  cost[15,8,18] =  140;
  cost[15,9,18] =  23;
  cost[15,10,18] =  157;
  cost[15,11,18] =  322;
  cost[15,12,18] =  469;
  cost[15,13,18] =  417;
  cost[15,14,18] =  52;
  cost[15,15,18] =  0;
  cost[15,16,18] =  449;
  cost[15,17,18] =  262;
  cost[15,18,18] =  60;
  cost[15,19,18] =  297;
  cost[15,20,18] =  325;
  cost[15,21,18] =  171;
  cost[16,0,18] =  398;
  cost[16,1,18] =  470;
  cost[16,2,18] =  56;
  cost[16,3,18] =  457;
  cost[16,4,18] =  355;
  cost[16,5,18] =  252;
  cost[16,6,18] =  209;
  cost[16,7,18] =  78;
  cost[16,8,18] =  265;
  cost[16,9,18] =  381;
  cost[16,10,18] =  152;
  cost[16,11,18] =  466;
  cost[16,12,18] =  234;
  cost[16,13,18] =  113;
  cost[16,14,18] =  14;
  cost[16,15,18] =  449;
  cost[16,16,18] =  0;
  cost[16,17,18] =  76;
  cost[16,18,18] =  224;
  cost[16,19,18] =  0;
  cost[16,20,18] =  439;
  cost[16,21,18] =  460;
  cost[17,0,18] =  148;
  cost[17,1,18] =  233;
  cost[17,2,18] =  45;
  cost[17,3,18] =  56;
  cost[17,4,18] =  287;
  cost[17,5,18] =  291;
  cost[17,6,18] =  75;
  cost[17,7,18] =  440;
  cost[17,8,18] =  73;
  cost[17,9,18] =  136;
  cost[17,10,18] =  405;
  cost[17,11,18] =  332;
  cost[17,12,18] =  53;
  cost[17,13,18] =  354;
  cost[17,14,18] =  444;
  cost[17,15,18] =  262;
  cost[17,16,18] =  76;
  cost[17,17,18] =  0;
  cost[17,18,18] =  395;
  cost[17,19,18] =  178;
  cost[17,20,18] =  403;
  cost[17,21,18] =  24;
  cost[18,0,18] =  168;
  cost[18,1,18] =  222;
  cost[18,2,18] =  191;
  cost[18,3,18] =  181;
  cost[18,4,18] =  133;
  cost[18,5,18] =  196;
  cost[18,6,18] =  133;
  cost[18,7,18] =  240;
  cost[18,8,18] =  350;
  cost[18,9,18] =  172;
  cost[18,10,18] =  222;
  cost[18,11,18] =  476;
  cost[18,12,18] =  201;
  cost[18,13,18] =  338;
  cost[18,14,18] =  375;
  cost[18,15,18] =  60;
  cost[18,16,18] =  224;
  cost[18,17,18] =  395;
  cost[18,18,18] =  0;
  cost[18,19,18] =  258;
  cost[18,20,18] =  360;
  cost[18,21,18] =  120;
  cost[19,0,18] =  203;
  cost[19,1,18] =  208;
  cost[19,2,18] =  55;
  cost[19,3,18] =  275;
  cost[19,4,18] =  342;
  cost[19,5,18] =  457;
  cost[19,6,18] =  371;
  cost[19,7,18] =  52;
  cost[19,8,18] =  340;
  cost[19,9,18] =  425;
  cost[19,10,18] =  200;
  cost[19,11,18] =  22;
  cost[19,12,18] =  363;
  cost[19,13,18] =  335;
  cost[19,14,18] =  337;
  cost[19,15,18] =  297;
  cost[19,16,18] =  0;
  cost[19,17,18] =  178;
  cost[19,18,18] =  258;
  cost[19,19,18] =  0;
  cost[19,20,18] =  91;
  cost[19,21,18] =  173;
  cost[20,0,18] =  219;
  cost[20,1,18] =  213;
  cost[20,2,18] =  155;
  cost[20,3,18] =  211;
  cost[20,4,18] =  181;
  cost[20,5,18] =  475;
  cost[20,6,18] =  153;
  cost[20,7,18] =  431;
  cost[20,8,18] =  206;
  cost[20,9,18] =  215;
  cost[20,10,18] =  43;
  cost[20,11,18] =  39;
  cost[20,12,18] =  235;
  cost[20,13,18] =  71;
  cost[20,14,18] =  427;
  cost[20,15,18] =  325;
  cost[20,16,18] =  439;
  cost[20,17,18] =  403;
  cost[20,18,18] =  360;
  cost[20,19,18] =  91;
  cost[20,20,18] =  0;
  cost[20,21,18] =  52;
  cost[21,0,18] =  321;
  cost[21,1,18] =  187;
  cost[21,2,18] =  241;
  cost[21,3,18] =  458;
  cost[21,4,18] =  162;
  cost[21,5,18] =  28;
  cost[21,6,18] =  432;
  cost[21,7,18] =  268;
  cost[21,8,18] =  237;
  cost[21,9,18] =  128;
  cost[21,10,18] =  363;
  cost[21,11,18] =  214;
  cost[21,12,18] =  469;
  cost[21,13,18] =  382;
  cost[21,14,18] =  223;
  cost[21,15,18] =  171;
  cost[21,16,18] =  460;
  cost[21,17,18] =  24;
  cost[21,18,18] =  120;
  cost[21,19,18] =  173;
  cost[21,20,18] =  52;
  cost[21,21,18] =  0;
  cost[0,0,19] =  0;
  cost[0,1,19] =  479;
  cost[0,2,19] =  287;
  cost[0,3,19] =  354;
  cost[0,4,19] =  444;
  cost[0,5,19] =  66;
  cost[0,6,19] =  414;
  cost[0,7,19] =  258;
  cost[0,8,19] =  391;
  cost[0,9,19] =  102;
  cost[0,10,19] =  57;
  cost[0,11,19] =  467;
  cost[0,12,19] =  327;
  cost[0,13,19] =  57;
  cost[0,14,19] =  423;
  cost[0,15,19] =  303;
  cost[0,16,19] =  43;
  cost[0,17,19] =  335;
  cost[0,18,19] =  481;
  cost[0,19,19] =  446;
  cost[0,20,19] =  360;
  cost[0,21,19] =  47;
  cost[1,0,19] =  479;
  cost[1,1,19] =  0;
  cost[1,2,19] =  237;
  cost[1,3,19] =  167;
  cost[1,4,19] =  376;
  cost[1,5,19] =  328;
  cost[1,6,19] =  341;
  cost[1,7,19] =  64;
  cost[1,8,19] =  380;
  cost[1,9,19] =  405;
  cost[1,10,19] =  88;
  cost[1,11,19] =  376;
  cost[1,12,19] =  209;
  cost[1,13,19] =  442;
  cost[1,14,19] =  337;
  cost[1,15,19] =  276;
  cost[1,16,19] =  373;
  cost[1,17,19] =  111;
  cost[1,18,19] =  183;
  cost[1,19,19] =  475;
  cost[1,20,19] =  169;
  cost[1,21,19] =  167;
  cost[2,0,19] =  287;
  cost[2,1,19] =  237;
  cost[2,2,19] =  0;
  cost[2,3,19] =  227;
  cost[2,4,19] =  106;
  cost[2,5,19] =  138;
  cost[2,6,19] =  270;
  cost[2,7,19] =  442;
  cost[2,8,19] =  136;
  cost[2,9,19] =  233;
  cost[2,10,19] =  318;
  cost[2,11,19] =  184;
  cost[2,12,19] =  453;
  cost[2,13,19] =  71;
  cost[2,14,19] =  351;
  cost[2,15,19] =  346;
  cost[2,16,19] =  400;
  cost[2,17,19] =  209;
  cost[2,18,19] =  410;
  cost[2,19,19] =  297;
  cost[2,20,19] =  131;
  cost[2,21,19] =  15;
  cost[3,0,19] =  354;
  cost[3,1,19] =  167;
  cost[3,2,19] =  227;
  cost[3,3,19] =  0;
  cost[3,4,19] =  340;
  cost[3,5,19] =  458;
  cost[3,6,19] =  43;
  cost[3,7,19] =  132;
  cost[3,8,19] =  347;
  cost[3,9,19] =  154;
  cost[3,10,19] =  316;
  cost[3,11,19] =  339;
  cost[3,12,19] =  324;
  cost[3,13,19] =  483;
  cost[3,14,19] =  175;
  cost[3,15,19] =  67;
  cost[3,16,19] =  106;
  cost[3,17,19] =  313;
  cost[3,18,19] =  338;
  cost[3,19,19] =  64;
  cost[3,20,19] =  450;
  cost[3,21,19] =  87;
  cost[4,0,19] =  444;
  cost[4,1,19] =  376;
  cost[4,2,19] =  106;
  cost[4,3,19] =  340;
  cost[4,4,19] =  0;
  cost[4,5,19] =  150;
  cost[4,6,19] =  57;
  cost[4,7,19] =  455;
  cost[4,8,19] =  18;
  cost[4,9,19] =  404;
  cost[4,10,19] =  372;
  cost[4,11,19] =  228;
  cost[4,12,19] =  331;
  cost[4,13,19] =  185;
  cost[4,14,19] =  359;
  cost[4,15,19] =  346;
  cost[4,16,19] =  375;
  cost[4,17,19] =  215;
  cost[4,18,19] =  320;
  cost[4,19,19] =  418;
  cost[4,20,19] =  348;
  cost[4,21,19] =  184;
  cost[5,0,19] =  66;
  cost[5,1,19] =  328;
  cost[5,2,19] =  138;
  cost[5,3,19] =  458;
  cost[5,4,19] =  150;
  cost[5,5,19] =  0;
  cost[5,6,19] =  180;
  cost[5,7,19] =  40;
  cost[5,8,19] =  413;
  cost[5,9,19] =  180;
  cost[5,10,19] =  215;
  cost[5,11,19] =  481;
  cost[5,12,19] =  286;
  cost[5,13,19] =  45;
  cost[5,14,19] =  335;
  cost[5,15,19] =  351;
  cost[5,16,19] =  12;
  cost[5,17,19] =  423;
  cost[5,18,19] =  251;
  cost[5,19,19] =  162;
  cost[5,20,19] =  480;
  cost[5,21,19] =  222;
  cost[6,0,19] =  414;
  cost[6,1,19] =  341;
  cost[6,2,19] =  270;
  cost[6,3,19] =  43;
  cost[6,4,19] =  57;
  cost[6,5,19] =  180;
  cost[6,6,19] =  0;
  cost[6,7,19] =  400;
  cost[6,8,19] =  110;
  cost[6,9,19] =  410;
  cost[6,10,19] =  247;
  cost[6,11,19] =  296;
  cost[6,12,19] =  285;
  cost[6,13,19] =  110;
  cost[6,14,19] =  187;
  cost[6,15,19] =  16;
  cost[6,16,19] =  430;
  cost[6,17,19] =  122;
  cost[6,18,19] =  365;
  cost[6,19,19] =  130;
  cost[6,20,19] =  211;
  cost[6,21,19] =  61;
  cost[7,0,19] =  258;
  cost[7,1,19] =  64;
  cost[7,2,19] =  442;
  cost[7,3,19] =  132;
  cost[7,4,19] =  455;
  cost[7,5,19] =  40;
  cost[7,6,19] =  400;
  cost[7,7,19] =  0;
  cost[7,8,19] =  141;
  cost[7,9,19] =  241;
  cost[7,10,19] =  386;
  cost[7,11,19] =  138;
  cost[7,12,19] =  44;
  cost[7,13,19] =  431;
  cost[7,14,19] =  473;
  cost[7,15,19] =  395;
  cost[7,16,19] =  443;
  cost[7,17,19] =  412;
  cost[7,18,19] =  163;
  cost[7,19,19] =  122;
  cost[7,20,19] =  409;
  cost[7,21,19] =  385;
  cost[8,0,19] =  391;
  cost[8,1,19] =  380;
  cost[8,2,19] =  136;
  cost[8,3,19] =  347;
  cost[8,4,19] =  18;
  cost[8,5,19] =  413;
  cost[8,6,19] =  110;
  cost[8,7,19] =  141;
  cost[8,8,19] =  0;
  cost[8,9,19] =  326;
  cost[8,10,19] =  12;
  cost[8,11,19] =  230;
  cost[8,12,19] =  90;
  cost[8,13,19] =  308;
  cost[8,14,19] =  31;
  cost[8,15,19] =  200;
  cost[8,16,19] =  12;
  cost[8,17,19] =  48;
  cost[8,18,19] =  146;
  cost[8,19,19] =  134;
  cost[8,20,19] =  413;
  cost[8,21,19] =  277;
  cost[9,0,19] =  102;
  cost[9,1,19] =  405;
  cost[9,2,19] =  233;
  cost[9,3,19] =  154;
  cost[9,4,19] =  404;
  cost[9,5,19] =  180;
  cost[9,6,19] =  410;
  cost[9,7,19] =  241;
  cost[9,8,19] =  326;
  cost[9,9,19] =  0;
  cost[9,10,19] =  475;
  cost[9,11,19] =  448;
  cost[9,12,19] =  3;
  cost[9,13,19] =  233;
  cost[9,14,19] =  351;
  cost[9,15,19] =  142;
  cost[9,16,19] =  278;
  cost[9,17,19] =  298;
  cost[9,18,19] =  132;
  cost[9,19,19] =  190;
  cost[9,20,19] =  258;
  cost[9,21,19] =  61;
  cost[10,0,19] =  57;
  cost[10,1,19] =  88;
  cost[10,2,19] =  318;
  cost[10,3,19] =  316;
  cost[10,4,19] =  372;
  cost[10,5,19] =  215;
  cost[10,6,19] =  247;
  cost[10,7,19] =  386;
  cost[10,8,19] =  12;
  cost[10,9,19] =  475;
  cost[10,10,19] =  0;
  cost[10,11,19] =  380;
  cost[10,12,19] =  470;
  cost[10,13,19] =  254;
  cost[10,14,19] =  201;
  cost[10,15,19] =  312;
  cost[10,16,19] =  267;
  cost[10,17,19] =  431;
  cost[10,18,19] =  402;
  cost[10,19,19] =  91;
  cost[10,20,19] =  463;
  cost[10,21,19] =  119;
  cost[11,0,19] =  467;
  cost[11,1,19] =  376;
  cost[11,2,19] =  184;
  cost[11,3,19] =  339;
  cost[11,4,19] =  228;
  cost[11,5,19] =  481;
  cost[11,6,19] =  296;
  cost[11,7,19] =  138;
  cost[11,8,19] =  230;
  cost[11,9,19] =  448;
  cost[11,10,19] =  380;
  cost[11,11,19] =  0;
  cost[11,12,19] =  27;
  cost[11,13,19] =  265;
  cost[11,14,19] =  238;
  cost[11,15,19] =  441;
  cost[11,16,19] =  59;
  cost[11,17,19] =  101;
  cost[11,18,19] =  433;
  cost[11,19,19] =  24;
  cost[11,20,19] =  105;
  cost[11,21,19] =  182;
  cost[12,0,19] =  327;
  cost[12,1,19] =  209;
  cost[12,2,19] =  453;
  cost[12,3,19] =  324;
  cost[12,4,19] =  331;
  cost[12,5,19] =  286;
  cost[12,6,19] =  285;
  cost[12,7,19] =  44;
  cost[12,8,19] =  90;
  cost[12,9,19] =  3;
  cost[12,10,19] =  470;
  cost[12,11,19] =  27;
  cost[12,12,19] =  0;
  cost[12,13,19] =  247;
  cost[12,14,19] =  461;
  cost[12,15,19] =  190;
  cost[12,16,19] =  379;
  cost[12,17,19] =  167;
  cost[12,18,19] =  448;
  cost[12,19,19] =  440;
  cost[12,20,19] =  36;
  cost[12,21,19] =  345;
  cost[13,0,19] =  57;
  cost[13,1,19] =  442;
  cost[13,2,19] =  71;
  cost[13,3,19] =  483;
  cost[13,4,19] =  185;
  cost[13,5,19] =  45;
  cost[13,6,19] =  110;
  cost[13,7,19] =  431;
  cost[13,8,19] =  308;
  cost[13,9,19] =  233;
  cost[13,10,19] =  254;
  cost[13,11,19] =  265;
  cost[13,12,19] =  247;
  cost[13,13,19] =  0;
  cost[13,14,19] =  290;
  cost[13,15,19] =  62;
  cost[13,16,19] =  256;
  cost[13,17,19] =  74;
  cost[13,18,19] =  10;
  cost[13,19,19] =  175;
  cost[13,20,19] =  165;
  cost[13,21,19] =  473;
  cost[14,0,19] =  423;
  cost[14,1,19] =  337;
  cost[14,2,19] =  351;
  cost[14,3,19] =  175;
  cost[14,4,19] =  359;
  cost[14,5,19] =  335;
  cost[14,6,19] =  187;
  cost[14,7,19] =  473;
  cost[14,8,19] =  31;
  cost[14,9,19] =  351;
  cost[14,10,19] =  201;
  cost[14,11,19] =  238;
  cost[14,12,19] =  461;
  cost[14,13,19] =  290;
  cost[14,14,19] =  0;
  cost[14,15,19] =  269;
  cost[14,16,19] =  17;
  cost[14,17,19] =  76;
  cost[14,18,19] =  24;
  cost[14,19,19] =  458;
  cost[14,20,19] =  135;
  cost[14,21,19] =  125;
  cost[15,0,19] =  303;
  cost[15,1,19] =  276;
  cost[15,2,19] =  346;
  cost[15,3,19] =  67;
  cost[15,4,19] =  346;
  cost[15,5,19] =  351;
  cost[15,6,19] =  16;
  cost[15,7,19] =  395;
  cost[15,8,19] =  200;
  cost[15,9,19] =  142;
  cost[15,10,19] =  312;
  cost[15,11,19] =  441;
  cost[15,12,19] =  190;
  cost[15,13,19] =  62;
  cost[15,14,19] =  269;
  cost[15,15,19] =  0;
  cost[15,16,19] =  160;
  cost[15,17,19] =  230;
  cost[15,18,19] =  107;
  cost[15,19,19] =  51;
  cost[15,20,19] =  478;
  cost[15,21,19] =  84;
  cost[16,0,19] =  43;
  cost[16,1,19] =  373;
  cost[16,2,19] =  400;
  cost[16,3,19] =  106;
  cost[16,4,19] =  375;
  cost[16,5,19] =  12;
  cost[16,6,19] =  430;
  cost[16,7,19] =  443;
  cost[16,8,19] =  12;
  cost[16,9,19] =  278;
  cost[16,10,19] =  267;
  cost[16,11,19] =  59;
  cost[16,12,19] =  379;
  cost[16,13,19] =  256;
  cost[16,14,19] =  17;
  cost[16,15,19] =  160;
  cost[16,16,19] =  0;
  cost[16,17,19] =  374;
  cost[16,18,19] =  251;
  cost[16,19,19] =  206;
  cost[16,20,19] =  331;
  cost[16,21,19] =  287;
  cost[17,0,19] =  335;
  cost[17,1,19] =  111;
  cost[17,2,19] =  209;
  cost[17,3,19] =  313;
  cost[17,4,19] =  215;
  cost[17,5,19] =  423;
  cost[17,6,19] =  122;
  cost[17,7,19] =  412;
  cost[17,8,19] =  48;
  cost[17,9,19] =  298;
  cost[17,10,19] =  431;
  cost[17,11,19] =  101;
  cost[17,12,19] =  167;
  cost[17,13,19] =  74;
  cost[17,14,19] =  76;
  cost[17,15,19] =  230;
  cost[17,16,19] =  374;
  cost[17,17,19] =  0;
  cost[17,18,19] =  274;
  cost[17,19,19] =  94;
  cost[17,20,19] =  130;
  cost[17,21,19] =  46;
  cost[18,0,19] =  481;
  cost[18,1,19] =  183;
  cost[18,2,19] =  410;
  cost[18,3,19] =  338;
  cost[18,4,19] =  320;
  cost[18,5,19] =  251;
  cost[18,6,19] =  365;
  cost[18,7,19] =  163;
  cost[18,8,19] =  146;
  cost[18,9,19] =  132;
  cost[18,10,19] =  402;
  cost[18,11,19] =  433;
  cost[18,12,19] =  448;
  cost[18,13,19] =  10;
  cost[18,14,19] =  24;
  cost[18,15,19] =  107;
  cost[18,16,19] =  251;
  cost[18,17,19] =  274;
  cost[18,18,19] =  0;
  cost[18,19,19] =  140;
  cost[18,20,19] =  222;
  cost[18,21,19] =  334;
  cost[19,0,19] =  446;
  cost[19,1,19] =  475;
  cost[19,2,19] =  297;
  cost[19,3,19] =  64;
  cost[19,4,19] =  418;
  cost[19,5,19] =  162;
  cost[19,6,19] =  130;
  cost[19,7,19] =  122;
  cost[19,8,19] =  134;
  cost[19,9,19] =  190;
  cost[19,10,19] =  91;
  cost[19,11,19] =  24;
  cost[19,12,19] =  440;
  cost[19,13,19] =  175;
  cost[19,14,19] =  458;
  cost[19,15,19] =  51;
  cost[19,16,19] =  206;
  cost[19,17,19] =  94;
  cost[19,18,19] =  140;
  cost[19,19,19] =  0;
  cost[19,20,19] =  32;
  cost[19,21,19] =  119;
  cost[20,0,19] =  360;
  cost[20,1,19] =  169;
  cost[20,2,19] =  131;
  cost[20,3,19] =  450;
  cost[20,4,19] =  348;
  cost[20,5,19] =  480;
  cost[20,6,19] =  211;
  cost[20,7,19] =  409;
  cost[20,8,19] =  413;
  cost[20,9,19] =  258;
  cost[20,10,19] =  463;
  cost[20,11,19] =  105;
  cost[20,12,19] =  36;
  cost[20,13,19] =  165;
  cost[20,14,19] =  135;
  cost[20,15,19] =  478;
  cost[20,16,19] =  331;
  cost[20,17,19] =  130;
  cost[20,18,19] =  222;
  cost[20,19,19] =  32;
  cost[20,20,19] =  0;
  cost[20,21,19] =  108;
  cost[21,0,19] =  47;
  cost[21,1,19] =  167;
  cost[21,2,19] =  15;
  cost[21,3,19] =  87;
  cost[21,4,19] =  184;
  cost[21,5,19] =  222;
  cost[21,6,19] =  61;
  cost[21,7,19] =  385;
  cost[21,8,19] =  277;
  cost[21,9,19] =  61;
  cost[21,10,19] =  119;
  cost[21,11,19] =  182;
  cost[21,12,19] =  345;
  cost[21,13,19] =  473;
  cost[21,14,19] =  125;
  cost[21,15,19] =  84;
  cost[21,16,19] =  287;
  cost[21,17,19] =  46;
  cost[21,18,19] =  334;
  cost[21,19,19] =  119;
  cost[21,20,19] =  108;
  cost[21,21,19] =  0;
  cost[0,0,20] =  0;
  cost[0,1,20] =  243;
  cost[0,2,20] =  270;
  cost[0,3,20] =  46;
  cost[0,4,20] =  404;
  cost[0,5,20] =  17;
  cost[0,6,20] =  153;
  cost[0,7,20] =  455;
  cost[0,8,20] =  11;
  cost[0,9,20] =  237;
  cost[0,10,20] =  213;
  cost[0,11,20] =  385;
  cost[0,12,20] =  5;
  cost[0,13,20] =  420;
  cost[0,14,20] =  232;
  cost[0,15,20] =  292;
  cost[0,16,20] =  4;
  cost[0,17,20] =  23;
  cost[0,18,20] =  387;
  cost[0,19,20] =  134;
  cost[0,20,20] =  70;
  cost[0,21,20] =  72;
  cost[1,0,20] =  243;
  cost[1,1,20] =  0;
  cost[1,2,20] =  292;
  cost[1,3,20] =  406;
  cost[1,4,20] =  405;
  cost[1,5,20] =  324;
  cost[1,6,20] =  42;
  cost[1,7,20] =  68;
  cost[1,8,20] =  432;
  cost[1,9,20] =  186;
  cost[1,10,20] =  190;
  cost[1,11,20] =  192;
  cost[1,12,20] =  456;
  cost[1,13,20] =  237;
  cost[1,14,20] =  112;
  cost[1,15,20] =  473;
  cost[1,16,20] =  390;
  cost[1,17,20] =  84;
  cost[1,18,20] =  1;
  cost[1,19,20] =  144;
  cost[1,20,20] =  298;
  cost[1,21,20] =  387;
  cost[2,0,20] =  270;
  cost[2,1,20] =  292;
  cost[2,2,20] =  0;
  cost[2,3,20] =  234;
  cost[2,4,20] =  136;
  cost[2,5,20] =  442;
  cost[2,6,20] =  238;
  cost[2,7,20] =  159;
  cost[2,8,20] =  346;
  cost[2,9,20] =  373;
  cost[2,10,20] =  230;
  cost[2,11,20] =  418;
  cost[2,12,20] =  164;
  cost[2,13,20] =  38;
  cost[2,14,20] =  340;
  cost[2,15,20] =  86;
  cost[2,16,20] =  363;
  cost[2,17,20] =  382;
  cost[2,18,20] =  154;
  cost[2,19,20] =  311;
  cost[2,20,20] =  85;
  cost[2,21,20] =  345;
  cost[3,0,20] =  46;
  cost[3,1,20] =  406;
  cost[3,2,20] =  234;
  cost[3,3,20] =  0;
  cost[3,4,20] =  57;
  cost[3,5,20] =  99;
  cost[3,6,20] =  133;
  cost[3,7,20] =  47;
  cost[3,8,20] =  5;
  cost[3,9,20] =  218;
  cost[3,10,20] =  49;
  cost[3,11,20] =  150;
  cost[3,12,20] =  32;
  cost[3,13,20] =  437;
  cost[3,14,20] =  300;
  cost[3,15,20] =  267;
  cost[3,16,20] =  89;
  cost[3,17,20] =  258;
  cost[3,18,20] =  21;
  cost[3,19,20] =  249;
  cost[3,20,20] =  120;
  cost[3,21,20] =  394;
  cost[4,0,20] =  404;
  cost[4,1,20] =  405;
  cost[4,2,20] =  136;
  cost[4,3,20] =  57;
  cost[4,4,20] =  0;
  cost[4,5,20] =  54;
  cost[4,6,20] =  75;
  cost[4,7,20] =  34;
  cost[4,8,20] =  395;
  cost[4,9,20] =  161;
  cost[4,10,20] =  397;
  cost[4,11,20] =  293;
  cost[4,12,20] =  316;
  cost[4,13,20] =  225;
  cost[4,14,20] =  378;
  cost[4,15,20] =  178;
  cost[4,16,20] =  245;
  cost[4,17,20] =  436;
  cost[4,18,20] =  277;
  cost[4,19,20] =  379;
  cost[4,20,20] =  0;
  cost[4,21,20] =  283;
  cost[5,0,20] =  17;
  cost[5,1,20] =  324;
  cost[5,2,20] =  442;
  cost[5,3,20] =  99;
  cost[5,4,20] =  54;
  cost[5,5,20] =  0;
  cost[5,6,20] =  50;
  cost[5,7,20] =  433;
  cost[5,8,20] =  146;
  cost[5,9,20] =  3;
  cost[5,10,20] =  249;
  cost[5,11,20] =  413;
  cost[5,12,20] =  92;
  cost[5,13,20] =  24;
  cost[5,14,20] =  435;
  cost[5,15,20] =  342;
  cost[5,16,20] =  145;
  cost[5,17,20] =  346;
  cost[5,18,20] =  338;
  cost[5,19,20] =  200;
  cost[5,20,20] =  421;
  cost[5,21,20] =  372;
  cost[6,0,20] =  153;
  cost[6,1,20] =  42;
  cost[6,2,20] =  238;
  cost[6,3,20] =  133;
  cost[6,4,20] =  75;
  cost[6,5,20] =  50;
  cost[6,6,20] =  0;
  cost[6,7,20] =  98;
  cost[6,8,20] =  285;
  cost[6,9,20] =  405;
  cost[6,10,20] =  415;
  cost[6,11,20] =  26;
  cost[6,12,20] =  300;
  cost[6,13,20] =  109;
  cost[6,14,20] =  272;
  cost[6,15,20] =  253;
  cost[6,16,20] =  386;
  cost[6,17,20] =  168;
  cost[6,18,20] =  253;
  cost[6,19,20] =  185;
  cost[6,20,20] =  282;
  cost[6,21,20] =  303;
  cost[7,0,20] =  455;
  cost[7,1,20] =  68;
  cost[7,2,20] =  159;
  cost[7,3,20] =  47;
  cost[7,4,20] =  34;
  cost[7,5,20] =  433;
  cost[7,6,20] =  98;
  cost[7,7,20] =  0;
  cost[7,8,20] =  429;
  cost[7,9,20] =  307;
  cost[7,10,20] =  385;
  cost[7,11,20] =  359;
  cost[7,12,20] =  400;
  cost[7,13,20] =  410;
  cost[7,14,20] =  310;
  cost[7,15,20] =  258;
  cost[7,16,20] =  71;
  cost[7,17,20] =  172;
  cost[7,18,20] =  112;
  cost[7,19,20] =  272;
  cost[7,20,20] =  110;
  cost[7,21,20] =  1;
  cost[8,0,20] =  11;
  cost[8,1,20] =  432;
  cost[8,2,20] =  346;
  cost[8,3,20] =  5;
  cost[8,4,20] =  395;
  cost[8,5,20] =  146;
  cost[8,6,20] =  285;
  cost[8,7,20] =  429;
  cost[8,8,20] =  0;
  cost[8,9,20] =  209;
  cost[8,10,20] =  287;
  cost[8,11,20] =  306;
  cost[8,12,20] =  140;
  cost[8,13,20] =  314;
  cost[8,14,20] =  122;
  cost[8,15,20] =  249;
  cost[8,16,20] =  102;
  cost[8,17,20] =  375;
  cost[8,18,20] =  152;
  cost[8,19,20] =  271;
  cost[8,20,20] =  145;
  cost[8,21,20] =  338;
  cost[9,0,20] =  237;
  cost[9,1,20] =  186;
  cost[9,2,20] =  373;
  cost[9,3,20] =  218;
  cost[9,4,20] =  161;
  cost[9,5,20] =  3;
  cost[9,6,20] =  405;
  cost[9,7,20] =  307;
  cost[9,8,20] =  209;
  cost[9,9,20] =  0;
  cost[9,10,20] =  449;
  cost[9,11,20] =  474;
  cost[9,12,20] =  15;
  cost[9,13,20] =  272;
  cost[9,14,20] =  375;
  cost[9,15,20] =  374;
  cost[9,16,20] =  189;
  cost[9,17,20] =  301;
  cost[9,18,20] =  201;
  cost[9,19,20] =  447;
  cost[9,20,20] =  373;
  cost[9,21,20] =  374;
  cost[10,0,20] =  213;
  cost[10,1,20] =  190;
  cost[10,2,20] =  230;
  cost[10,3,20] =  49;
  cost[10,4,20] =  397;
  cost[10,5,20] =  249;
  cost[10,6,20] =  415;
  cost[10,7,20] =  385;
  cost[10,8,20] =  287;
  cost[10,9,20] =  449;
  cost[10,10,20] =  0;
  cost[10,11,20] =  162;
  cost[10,12,20] =  0;
  cost[10,13,20] =  77;
  cost[10,14,20] =  62;
  cost[10,15,20] =  209;
  cost[10,16,20] =  365;
  cost[10,17,20] =  369;
  cost[10,18,20] =  350;
  cost[10,19,20] =  195;
  cost[10,20,20] =  7;
  cost[10,21,20] =  116;
  cost[11,0,20] =  385;
  cost[11,1,20] =  192;
  cost[11,2,20] =  418;
  cost[11,3,20] =  150;
  cost[11,4,20] =  293;
  cost[11,5,20] =  413;
  cost[11,6,20] =  26;
  cost[11,7,20] =  359;
  cost[11,8,20] =  306;
  cost[11,9,20] =  474;
  cost[11,10,20] =  162;
  cost[11,11,20] =  0;
  cost[11,12,20] =  383;
  cost[11,13,20] =  268;
  cost[11,14,20] =  85;
  cost[11,15,20] =  45;
  cost[11,16,20] =  123;
  cost[11,17,20] =  156;
  cost[11,18,20] =  10;
  cost[11,19,20] =  113;
  cost[11,20,20] =  171;
  cost[11,21,20] =  283;
  cost[12,0,20] =  5;
  cost[12,1,20] =  456;
  cost[12,2,20] =  164;
  cost[12,3,20] =  32;
  cost[12,4,20] =  316;
  cost[12,5,20] =  92;
  cost[12,6,20] =  300;
  cost[12,7,20] =  400;
  cost[12,8,20] =  140;
  cost[12,9,20] =  15;
  cost[12,10,20] =  0;
  cost[12,11,20] =  383;
  cost[12,12,20] =  0;
  cost[12,13,20] =  62;
  cost[12,14,20] =  472;
  cost[12,15,20] =  307;
  cost[12,16,20] =  263;
  cost[12,17,20] =  436;
  cost[12,18,20] =  197;
  cost[12,19,20] =  153;
  cost[12,20,20] =  28;
  cost[12,21,20] =  359;
  cost[13,0,20] =  420;
  cost[13,1,20] =  237;
  cost[13,2,20] =  38;
  cost[13,3,20] =  437;
  cost[13,4,20] =  225;
  cost[13,5,20] =  24;
  cost[13,6,20] =  109;
  cost[13,7,20] =  410;
  cost[13,8,20] =  314;
  cost[13,9,20] =  272;
  cost[13,10,20] =  77;
  cost[13,11,20] =  268;
  cost[13,12,20] =  62;
  cost[13,13,20] =  0;
  cost[13,14,20] =  106;
  cost[13,15,20] =  422;
  cost[13,16,20] =  364;
  cost[13,17,20] =  471;
  cost[13,18,20] =  307;
  cost[13,19,20] =  230;
  cost[13,20,20] =  183;
  cost[13,21,20] =  315;
  cost[14,0,20] =  232;
  cost[14,1,20] =  112;
  cost[14,2,20] =  340;
  cost[14,3,20] =  300;
  cost[14,4,20] =  378;
  cost[14,5,20] =  435;
  cost[14,6,20] =  272;
  cost[14,7,20] =  310;
  cost[14,8,20] =  122;
  cost[14,9,20] =  375;
  cost[14,10,20] =  62;
  cost[14,11,20] =  85;
  cost[14,12,20] =  472;
  cost[14,13,20] =  106;
  cost[14,14,20] =  0;
  cost[14,15,20] =  481;
  cost[14,16,20] =  214;
  cost[14,17,20] =  131;
  cost[14,18,20] =  83;
  cost[14,19,20] =  259;
  cost[14,20,20] =  255;
  cost[14,21,20] =  239;
  cost[15,0,20] =  292;
  cost[15,1,20] =  473;
  cost[15,2,20] =  86;
  cost[15,3,20] =  267;
  cost[15,4,20] =  178;
  cost[15,5,20] =  342;
  cost[15,6,20] =  253;
  cost[15,7,20] =  258;
  cost[15,8,20] =  249;
  cost[15,9,20] =  374;
  cost[15,10,20] =  209;
  cost[15,11,20] =  45;
  cost[15,12,20] =  307;
  cost[15,13,20] =  422;
  cost[15,14,20] =  481;
  cost[15,15,20] =  0;
  cost[15,16,20] =  368;
  cost[15,17,20] =  410;
  cost[15,18,20] =  69;
  cost[15,19,20] =  374;
  cost[15,20,20] =  473;
  cost[15,21,20] =  58;
  cost[16,0,20] =  4;
  cost[16,1,20] =  390;
  cost[16,2,20] =  363;
  cost[16,3,20] =  89;
  cost[16,4,20] =  245;
  cost[16,5,20] =  145;
  cost[16,6,20] =  386;
  cost[16,7,20] =  71;
  cost[16,8,20] =  102;
  cost[16,9,20] =  189;
  cost[16,10,20] =  365;
  cost[16,11,20] =  123;
  cost[16,12,20] =  263;
  cost[16,13,20] =  364;
  cost[16,14,20] =  214;
  cost[16,15,20] =  368;
  cost[16,16,20] =  0;
  cost[16,17,20] =  253;
  cost[16,18,20] =  11;
  cost[16,19,20] =  394;
  cost[16,20,20] =  407;
  cost[16,21,20] =  40;
  cost[17,0,20] =  23;
  cost[17,1,20] =  84;
  cost[17,2,20] =  382;
  cost[17,3,20] =  258;
  cost[17,4,20] =  436;
  cost[17,5,20] =  346;
  cost[17,6,20] =  168;
  cost[17,7,20] =  172;
  cost[17,8,20] =  375;
  cost[17,9,20] =  301;
  cost[17,10,20] =  369;
  cost[17,11,20] =  156;
  cost[17,12,20] =  436;
  cost[17,13,20] =  471;
  cost[17,14,20] =  131;
  cost[17,15,20] =  410;
  cost[17,16,20] =  253;
  cost[17,17,20] =  0;
  cost[17,18,20] =  77;
  cost[17,19,20] =  147;
  cost[17,20,20] =  208;
  cost[17,21,20] =  441;
  cost[18,0,20] =  387;
  cost[18,1,20] =  1;
  cost[18,2,20] =  154;
  cost[18,3,20] =  21;
  cost[18,4,20] =  277;
  cost[18,5,20] =  338;
  cost[18,6,20] =  253;
  cost[18,7,20] =  112;
  cost[18,8,20] =  152;
  cost[18,9,20] =  201;
  cost[18,10,20] =  350;
  cost[18,11,20] =  10;
  cost[18,12,20] =  197;
  cost[18,13,20] =  307;
  cost[18,14,20] =  83;
  cost[18,15,20] =  69;
  cost[18,16,20] =  11;
  cost[18,17,20] =  77;
  cost[18,18,20] =  0;
  cost[18,19,20] =  31;
  cost[18,20,20] =  187;
  cost[18,21,20] =  318;
  cost[19,0,20] =  134;
  cost[19,1,20] =  144;
  cost[19,2,20] =  311;
  cost[19,3,20] =  249;
  cost[19,4,20] =  379;
  cost[19,5,20] =  200;
  cost[19,6,20] =  185;
  cost[19,7,20] =  272;
  cost[19,8,20] =  271;
  cost[19,9,20] =  447;
  cost[19,10,20] =  195;
  cost[19,11,20] =  113;
  cost[19,12,20] =  153;
  cost[19,13,20] =  230;
  cost[19,14,20] =  259;
  cost[19,15,20] =  374;
  cost[19,16,20] =  394;
  cost[19,17,20] =  147;
  cost[19,18,20] =  31;
  cost[19,19,20] =  0;
  cost[19,20,20] =  50;
  cost[19,21,20] =  315;
  cost[20,0,20] =  70;
  cost[20,1,20] =  298;
  cost[20,2,20] =  85;
  cost[20,3,20] =  120;
  cost[20,4,20] =  0;
  cost[20,5,20] =  421;
  cost[20,6,20] =  282;
  cost[20,7,20] =  110;
  cost[20,8,20] =  145;
  cost[20,9,20] =  373;
  cost[20,10,20] =  7;
  cost[20,11,20] =  171;
  cost[20,12,20] =  28;
  cost[20,13,20] =  183;
  cost[20,14,20] =  255;
  cost[20,15,20] =  473;
  cost[20,16,20] =  407;
  cost[20,17,20] =  208;
  cost[20,18,20] =  187;
  cost[20,19,20] =  50;
  cost[20,20,20] =  0;
  cost[20,21,20] =  182;
  cost[21,0,20] =  72;
  cost[21,1,20] =  387;
  cost[21,2,20] =  345;
  cost[21,3,20] =  394;
  cost[21,4,20] =  283;
  cost[21,5,20] =  372;
  cost[21,6,20] =  303;
  cost[21,7,20] =  1;
  cost[21,8,20] =  338;
  cost[21,9,20] =  374;
  cost[21,10,20] =  116;
  cost[21,11,20] =  283;
  cost[21,12,20] =  359;
  cost[21,13,20] =  315;
  cost[21,14,20] =  239;
  cost[21,15,20] =  58;
  cost[21,16,20] =  40;
  cost[21,17,20] =  441;
  cost[21,18,20] =  318;
  cost[21,19,20] =  315;
  cost[21,20,20] =  182;
  cost[21,21,20] =  0;
  cost[0,0,21] =  0;
  cost[0,1,21] =  437;
  cost[0,2,21] =  153;
  cost[0,3,21] =  123;
  cost[0,4,21] =  322;
  cost[0,5,21] =  80;
  cost[0,6,21] =  193;
  cost[0,7,21] =  212;
  cost[0,8,21] =  69;
  cost[0,9,21] =  252;
  cost[0,10,21] =  409;
  cost[0,11,21] =  322;
  cost[0,12,21] =  263;
  cost[0,13,21] =  319;
  cost[0,14,21] =  245;
  cost[0,15,21] =  303;
  cost[0,16,21] =  105;
  cost[0,17,21] =  323;
  cost[0,18,21] =  450;
  cost[0,19,21] =  314;
  cost[0,20,21] =  280;
  cost[0,21,21] =  101;
  cost[1,0,21] =  437;
  cost[1,1,21] =  0;
  cost[1,2,21] =  468;
  cost[1,3,21] =  419;
  cost[1,4,21] =  209;
  cost[1,5,21] =  34;
  cost[1,6,21] =  251;
  cost[1,7,21] =  286;
  cost[1,8,21] =  217;
  cost[1,9,21] =  165;
  cost[1,10,21] =  140;
  cost[1,11,21] =  170;
  cost[1,12,21] =  319;
  cost[1,13,21] =  263;
  cost[1,14,21] =  8;
  cost[1,15,21] =  399;
  cost[1,16,21] =  457;
  cost[1,17,21] =  220;
  cost[1,18,21] =  469;
  cost[1,19,21] =  225;
  cost[1,20,21] =  145;
  cost[1,21,21] =  308;
  cost[2,0,21] =  153;
  cost[2,1,21] =  468;
  cost[2,2,21] =  0;
  cost[2,3,21] =  465;
  cost[2,4,21] =  69;
  cost[2,5,21] =  308;
  cost[2,6,21] =  87;
  cost[2,7,21] =  393;
  cost[2,8,21] =  275;
  cost[2,9,21] =  401;
  cost[2,10,21] =  189;
  cost[2,11,21] =  377;
  cost[2,12,21] =  263;
  cost[2,13,21] =  174;
  cost[2,14,21] =  313;
  cost[2,15,21] =  472;
  cost[2,16,21] =  209;
  cost[2,17,21] =  80;
  cost[2,18,21] =  275;
  cost[2,19,21] =  426;
  cost[2,20,21] =  246;
  cost[2,21,21] =  415;
  cost[3,0,21] =  123;
  cost[3,1,21] =  419;
  cost[3,2,21] =  465;
  cost[3,3,21] =  0;
  cost[3,4,21] =  81;
  cost[3,5,21] =  195;
  cost[3,6,21] =  121;
  cost[3,7,21] =  481;
  cost[3,8,21] =  168;
  cost[3,9,21] =  341;
  cost[3,10,21] =  466;
  cost[3,11,21] =  394;
  cost[3,12,21] =  3;
  cost[3,13,21] =  291;
  cost[3,14,21] =  399;
  cost[3,15,21] =  469;
  cost[3,16,21] =  361;
  cost[3,17,21] =  224;
  cost[3,18,21] =  72;
  cost[3,19,21] =  270;
  cost[3,20,21] =  15;
  cost[3,21,21] =  474;
  cost[4,0,21] =  322;
  cost[4,1,21] =  209;
  cost[4,2,21] =  69;
  cost[4,3,21] =  81;
  cost[4,4,21] =  0;
  cost[4,5,21] =  392;
  cost[4,6,21] =  253;
  cost[4,7,21] =  150;
  cost[4,8,21] =  221;
  cost[4,9,21] =  242;
  cost[4,10,21] =  359;
  cost[4,11,21] =  302;
  cost[4,12,21] =  33;
  cost[4,13,21] =  301;
  cost[4,14,21] =  64;
  cost[4,15,21] =  449;
  cost[4,16,21] =  414;
  cost[4,17,21] =  146;
  cost[4,18,21] =  160;
  cost[4,19,21] =  51;
  cost[4,20,21] =  143;
  cost[4,21,21] =  329;
  cost[5,0,21] =  80;
  cost[5,1,21] =  34;
  cost[5,2,21] =  308;
  cost[5,3,21] =  195;
  cost[5,4,21] =  392;
  cost[5,5,21] =  0;
  cost[5,6,21] =  126;
  cost[5,7,21] =  239;
  cost[5,8,21] =  396;
  cost[5,9,21] =  417;
  cost[5,10,21] =  154;
  cost[5,11,21] =  381;
  cost[5,12,21] =  294;
  cost[5,13,21] =  379;
  cost[5,14,21] =  453;
  cost[5,15,21] =  81;
  cost[5,16,21] =  394;
  cost[5,17,21] =  444;
  cost[5,18,21] =  57;
  cost[5,19,21] =  303;
  cost[5,20,21] =  213;
  cost[5,21,21] =  207;
  cost[6,0,21] =  193;
  cost[6,1,21] =  251;
  cost[6,2,21] =  87;
  cost[6,3,21] =  121;
  cost[6,4,21] =  253;
  cost[6,5,21] =  126;
  cost[6,6,21] =  0;
  cost[6,7,21] =  456;
  cost[6,8,21] =  82;
  cost[6,9,21] =  342;
  cost[6,10,21] =  6;
  cost[6,11,21] =  384;
  cost[6,12,21] =  407;
  cost[6,13,21] =  455;
  cost[6,14,21] =  314;
  cost[6,15,21] =  69;
  cost[6,16,21] =  132;
  cost[6,17,21] =  365;
  cost[6,18,21] =  212;
  cost[6,19,21] =  461;
  cost[6,20,21] =  274;
  cost[6,21,21] =  339;
  cost[7,0,21] =  212;
  cost[7,1,21] =  286;
  cost[7,2,21] =  393;
  cost[7,3,21] =  481;
  cost[7,4,21] =  150;
  cost[7,5,21] =  239;
  cost[7,6,21] =  456;
  cost[7,7,21] =  0;
  cost[7,8,21] =  186;
  cost[7,9,21] =  273;
  cost[7,10,21] =  372;
  cost[7,11,21] =  84;
  cost[7,12,21] =  83;
  cost[7,13,21] =  267;
  cost[7,14,21] =  54;
  cost[7,15,21] =  164;
  cost[7,16,21] =  178;
  cost[7,17,21] =  14;
  cost[7,18,21] =  222;
  cost[7,19,21] =  481;
  cost[7,20,21] =  227;
  cost[7,21,21] =  429;
  cost[8,0,21] =  69;
  cost[8,1,21] =  217;
  cost[8,2,21] =  275;
  cost[8,3,21] =  168;
  cost[8,4,21] =  221;
  cost[8,5,21] =  396;
  cost[8,6,21] =  82;
  cost[8,7,21] =  186;
  cost[8,8,21] =  0;
  cost[8,9,21] =  199;
  cost[8,10,21] =  27;
  cost[8,11,21] =  381;
  cost[8,12,21] =  205;
  cost[8,13,21] =  412;
  cost[8,14,21] =  304;
  cost[8,15,21] =  177;
  cost[8,16,21] =  242;
  cost[8,17,21] =  373;
  cost[8,18,21] =  309;
  cost[8,19,21] =  124;
  cost[8,20,21] =  102;
  cost[8,21,21] =  287;
  cost[9,0,21] =  252;
  cost[9,1,21] =  165;
  cost[9,2,21] =  401;
  cost[9,3,21] =  341;
  cost[9,4,21] =  242;
  cost[9,5,21] =  417;
  cost[9,6,21] =  342;
  cost[9,7,21] =  273;
  cost[9,8,21] =  199;
  cost[9,9,21] =  0;
  cost[9,10,21] =  441;
  cost[9,11,21] =  21;
  cost[9,12,21] =  101;
  cost[9,13,21] =  230;
  cost[9,14,21] =  393;
  cost[9,15,21] =  185;
  cost[9,16,21] =  314;
  cost[9,17,21] =  177;
  cost[9,18,21] =  239;
  cost[9,19,21] =  479;
  cost[9,20,21] =  355;
  cost[9,21,21] =  253;
  cost[10,0,21] =  409;
  cost[10,1,21] =  140;
  cost[10,2,21] =  189;
  cost[10,3,21] =  466;
  cost[10,4,21] =  359;
  cost[10,5,21] =  154;
  cost[10,6,21] =  6;
  cost[10,7,21] =  372;
  cost[10,8,21] =  27;
  cost[10,9,21] =  441;
  cost[10,10,21] =  0;
  cost[10,11,21] =  352;
  cost[10,12,21] =  481;
  cost[10,13,21] =  162;
  cost[10,14,21] =  390;
  cost[10,15,21] =  197;
  cost[10,16,21] =  190;
  cost[10,17,21] =  288;
  cost[10,18,21] =  403;
  cost[10,19,21] =  118;
  cost[10,20,21] =  108;
  cost[10,21,21] =  96;
  cost[11,0,21] =  322;
  cost[11,1,21] =  170;
  cost[11,2,21] =  377;
  cost[11,3,21] =  394;
  cost[11,4,21] =  302;
  cost[11,5,21] =  381;
  cost[11,6,21] =  384;
  cost[11,7,21] =  84;
  cost[11,8,21] =  381;
  cost[11,9,21] =  21;
  cost[11,10,21] =  352;
  cost[11,11,21] =  0;
  cost[11,12,21] =  481;
  cost[11,13,21] =  406;
  cost[11,14,21] =  1;
  cost[11,15,21] =  99;
  cost[11,16,21] =  210;
  cost[11,17,21] =  400;
  cost[11,18,21] =  57;
  cost[11,19,21] =  231;
  cost[11,20,21] =  17;
  cost[11,21,21] =  288;
  cost[12,0,21] =  263;
  cost[12,1,21] =  319;
  cost[12,2,21] =  263;
  cost[12,3,21] =  3;
  cost[12,4,21] =  33;
  cost[12,5,21] =  294;
  cost[12,6,21] =  407;
  cost[12,7,21] =  83;
  cost[12,8,21] =  205;
  cost[12,9,21] =  101;
  cost[12,10,21] =  481;
  cost[12,11,21] =  481;
  cost[12,12,21] =  0;
  cost[12,13,21] =  202;
  cost[12,14,21] =  118;
  cost[12,15,21] =  319;
  cost[12,16,21] =  442;
  cost[12,17,21] =  113;
  cost[12,18,21] =  190;
  cost[12,19,21] =  212;
  cost[12,20,21] =  331;
  cost[12,21,21] =  59;
  cost[13,0,21] =  319;
  cost[13,1,21] =  263;
  cost[13,2,21] =  174;
  cost[13,3,21] =  291;
  cost[13,4,21] =  301;
  cost[13,5,21] =  379;
  cost[13,6,21] =  455;
  cost[13,7,21] =  267;
  cost[13,8,21] =  412;
  cost[13,9,21] =  230;
  cost[13,10,21] =  162;
  cost[13,11,21] =  406;
  cost[13,12,21] =  202;
  cost[13,13,21] =  0;
  cost[13,14,21] =  10;
  cost[13,15,21] =  450;
  cost[13,16,21] =  407;
  cost[13,17,21] =  200;
  cost[13,18,21] =  254;
  cost[13,19,21] =  326;
  cost[13,20,21] =  319;
  cost[13,21,21] =  362;
  cost[14,0,21] =  245;
  cost[14,1,21] =  8;
  cost[14,2,21] =  313;
  cost[14,3,21] =  399;
  cost[14,4,21] =  64;
  cost[14,5,21] =  453;
  cost[14,6,21] =  314;
  cost[14,7,21] =  54;
  cost[14,8,21] =  304;
  cost[14,9,21] =  393;
  cost[14,10,21] =  390;
  cost[14,11,21] =  1;
  cost[14,12,21] =  118;
  cost[14,13,21] =  10;
  cost[14,14,21] =  0;
  cost[14,15,21] =  196;
  cost[14,16,21] =  360;
  cost[14,17,21] =  346;
  cost[14,18,21] =  198;
  cost[14,19,21] =  460;
  cost[14,20,21] =  72;
  cost[14,21,21] =  114;
  cost[15,0,21] =  303;
  cost[15,1,21] =  399;
  cost[15,2,21] =  472;
  cost[15,3,21] =  469;
  cost[15,4,21] =  449;
  cost[15,5,21] =  81;
  cost[15,6,21] =  69;
  cost[15,7,21] =  164;
  cost[15,8,21] =  177;
  cost[15,9,21] =  185;
  cost[15,10,21] =  197;
  cost[15,11,21] =  99;
  cost[15,12,21] =  319;
  cost[15,13,21] =  450;
  cost[15,14,21] =  196;
  cost[15,15,21] =  0;
  cost[15,16,21] =  304;
  cost[15,17,21] =  131;
  cost[15,18,21] =  322;
  cost[15,19,21] =  446;
  cost[15,20,21] =  334;
  cost[15,21,21] =  440;
  cost[16,0,21] =  105;
  cost[16,1,21] =  457;
  cost[16,2,21] =  209;
  cost[16,3,21] =  361;
  cost[16,4,21] =  414;
  cost[16,5,21] =  394;
  cost[16,6,21] =  132;
  cost[16,7,21] =  178;
  cost[16,8,21] =  242;
  cost[16,9,21] =  314;
  cost[16,10,21] =  190;
  cost[16,11,21] =  210;
  cost[16,12,21] =  442;
  cost[16,13,21] =  407;
  cost[16,14,21] =  360;
  cost[16,15,21] =  304;
  cost[16,16,21] =  0;
  cost[16,17,21] =  293;
  cost[16,18,21] =  70;
  cost[16,19,21] =  472;
  cost[16,20,21] =  21;
  cost[16,21,21] =  402;
  cost[17,0,21] =  323;
  cost[17,1,21] =  220;
  cost[17,2,21] =  80;
  cost[17,3,21] =  224;
  cost[17,4,21] =  146;
  cost[17,5,21] =  444;
  cost[17,6,21] =  365;
  cost[17,7,21] =  14;
  cost[17,8,21] =  373;
  cost[17,9,21] =  177;
  cost[17,10,21] =  288;
  cost[17,11,21] =  400;
  cost[17,12,21] =  113;
  cost[17,13,21] =  200;
  cost[17,14,21] =  346;
  cost[17,15,21] =  131;
  cost[17,16,21] =  293;
  cost[17,17,21] =  0;
  cost[17,18,21] =  231;
  cost[17,19,21] =  412;
  cost[17,20,21] =  14;
  cost[17,21,21] =  154;
  cost[18,0,21] =  450;
  cost[18,1,21] =  469;
  cost[18,2,21] =  275;
  cost[18,3,21] =  72;
  cost[18,4,21] =  160;
  cost[18,5,21] =  57;
  cost[18,6,21] =  212;
  cost[18,7,21] =  222;
  cost[18,8,21] =  309;
  cost[18,9,21] =  239;
  cost[18,10,21] =  403;
  cost[18,11,21] =  57;
  cost[18,12,21] =  190;
  cost[18,13,21] =  254;
  cost[18,14,21] =  198;
  cost[18,15,21] =  322;
  cost[18,16,21] =  70;
  cost[18,17,21] =  231;
  cost[18,18,21] =  0;
  cost[18,19,21] =  269;
  cost[18,20,21] =  480;
  cost[18,21,21] =  449;
  cost[19,0,21] =  314;
  cost[19,1,21] =  225;
  cost[19,2,21] =  426;
  cost[19,3,21] =  270;
  cost[19,4,21] =  51;
  cost[19,5,21] =  303;
  cost[19,6,21] =  461;
  cost[19,7,21] =  481;
  cost[19,8,21] =  124;
  cost[19,9,21] =  479;
  cost[19,10,21] =  118;
  cost[19,11,21] =  231;
  cost[19,12,21] =  212;
  cost[19,13,21] =  326;
  cost[19,14,21] =  460;
  cost[19,15,21] =  446;
  cost[19,16,21] =  472;
  cost[19,17,21] =  412;
  cost[19,18,21] =  269;
  cost[19,19,21] =  0;
  cost[19,20,21] =  420;
  cost[19,21,21] =  161;
  cost[20,0,21] =  280;
  cost[20,1,21] =  145;
  cost[20,2,21] =  246;
  cost[20,3,21] =  15;
  cost[20,4,21] =  143;
  cost[20,5,21] =  213;
  cost[20,6,21] =  274;
  cost[20,7,21] =  227;
  cost[20,8,21] =  102;
  cost[20,9,21] =  355;
  cost[20,10,21] =  108;
  cost[20,11,21] =  17;
  cost[20,12,21] =  331;
  cost[20,13,21] =  319;
  cost[20,14,21] =  72;
  cost[20,15,21] =  334;
  cost[20,16,21] =  21;
  cost[20,17,21] =  14;
  cost[20,18,21] =  480;
  cost[20,19,21] =  420;
  cost[20,20,21] =  0;
  cost[20,21,21] =  282;
  cost[21,0,21] =  101;
  cost[21,1,21] =  308;
  cost[21,2,21] =  415;
  cost[21,3,21] =  474;
  cost[21,4,21] =  329;
  cost[21,5,21] =  207;
  cost[21,6,21] =  339;
  cost[21,7,21] =  429;
  cost[21,8,21] =  287;
  cost[21,9,21] =  253;
  cost[21,10,21] =  96;
  cost[21,11,21] =  288;
  cost[21,12,21] =  59;
  cost[21,13,21] =  362;
  cost[21,14,21] =  114;
  cost[21,15,21] =  440;
  cost[21,16,21] =  402;
  cost[21,17,21] =  154;
  cost[21,18,21] =  449;
  cost[21,19,21] =  161;
  cost[21,20,21] =  282;
  cost[21,21,21] =  0;
  cost[0,0,22] =  0;
  cost[0,1,22] =  355;
  cost[0,2,22] =  474;
  cost[0,3,22] =  35;
  cost[0,4,22] =  175;
  cost[0,5,22] =  122;
  cost[0,6,22] =  357;
  cost[0,7,22] =  138;
  cost[0,8,22] =  457;
  cost[0,9,22] =  313;
  cost[0,10,22] =  420;
  cost[0,11,22] =  266;
  cost[0,12,22] =  384;
  cost[0,13,22] =  409;
  cost[0,14,22] =  287;
  cost[0,15,22] =  302;
  cost[0,16,22] =  457;
  cost[0,17,22] =  34;
  cost[0,18,22] =  231;
  cost[0,19,22] =  472;
  cost[0,20,22] =  188;
  cost[0,21,22] =  360;
  cost[1,0,22] =  355;
  cost[1,1,22] =  0;
  cost[1,2,22] =  185;
  cost[1,3,22] =  325;
  cost[1,4,22] =  405;
  cost[1,5,22] =  121;
  cost[1,6,22] =  3;
  cost[1,7,22] =  430;
  cost[1,8,22] =  403;
  cost[1,9,22] =  363;
  cost[1,10,22] =  431;
  cost[1,11,22] =  274;
  cost[1,12,22] =  354;
  cost[1,13,22] =  466;
  cost[1,14,22] =  450;
  cost[1,15,22] =  476;
  cost[1,16,22] =  339;
  cost[1,17,22] =  105;
  cost[1,18,22] =  449;
  cost[1,19,22] =  169;
  cost[1,20,22] =  41;
  cost[1,21,22] =  232;
  cost[2,0,22] =  474;
  cost[2,1,22] =  185;
  cost[2,2,22] =  0;
  cost[2,3,22] =  450;
  cost[2,4,22] =  35;
  cost[2,5,22] =  372;
  cost[2,6,22] =  424;
  cost[2,7,22] =  69;
  cost[2,8,22] =  120;
  cost[2,9,22] =  412;
  cost[2,10,22] =  258;
  cost[2,11,22] =  480;
  cost[2,12,22] =  185;
  cost[2,13,22] =  443;
  cost[2,14,22] =  322;
  cost[2,15,22] =  106;
  cost[2,16,22] =  81;
  cost[2,17,22] =  325;
  cost[2,18,22] =  52;
  cost[2,19,22] =  0;
  cost[2,20,22] =  205;
  cost[2,21,22] =  0;
  cost[3,0,22] =  35;
  cost[3,1,22] =  325;
  cost[3,2,22] =  450;
  cost[3,3,22] =  0;
  cost[3,4,22] =  75;
  cost[3,5,22] =  466;
  cost[3,6,22] =  241;
  cost[3,7,22] =  68;
  cost[3,8,22] =  322;
  cost[3,9,22] =  346;
  cost[3,10,22] =  34;
  cost[3,11,22] =  8;
  cost[3,12,22] =  388;
  cost[3,13,22] =  266;
  cost[3,14,22] =  78;
  cost[3,15,22] =  355;
  cost[3,16,22] =  301;
  cost[3,17,22] =  451;
  cost[3,18,22] =  295;
  cost[3,19,22] =  371;
  cost[3,20,22] =  87;
  cost[3,21,22] =  223;
  cost[4,0,22] =  175;
  cost[4,1,22] =  405;
  cost[4,2,22] =  35;
  cost[4,3,22] =  75;
  cost[4,4,22] =  0;
  cost[4,5,22] =  84;
  cost[4,6,22] =  408;
  cost[4,7,22] =  105;
  cost[4,8,22] =  406;
  cost[4,9,22] =  31;
  cost[4,10,22] =  186;
  cost[4,11,22] =  247;
  cost[4,12,22] =  84;
  cost[4,13,22] =  187;
  cost[4,14,22] =  452;
  cost[4,15,22] =  84;
  cost[4,16,22] =  462;
  cost[4,17,22] =  44;
  cost[4,18,22] =  67;
  cost[4,19,22] =  220;
  cost[4,20,22] =  112;
  cost[4,21,22] =  390;
  cost[5,0,22] =  122;
  cost[5,1,22] =  121;
  cost[5,2,22] =  372;
  cost[5,3,22] =  466;
  cost[5,4,22] =  84;
  cost[5,5,22] =  0;
  cost[5,6,22] =  146;
  cost[5,7,22] =  398;
  cost[5,8,22] =  471;
  cost[5,9,22] =  412;
  cost[5,10,22] =  476;
  cost[5,11,22] =  343;
  cost[5,12,22] =  230;
  cost[5,13,22] =  444;
  cost[5,14,22] =  154;
  cost[5,15,22] =  117;
  cost[5,16,22] =  47;
  cost[5,17,22] =  377;
  cost[5,18,22] =  263;
  cost[5,19,22] =  131;
  cost[5,20,22] =  302;
  cost[5,21,22] =  369;
  cost[6,0,22] =  357;
  cost[6,1,22] =  3;
  cost[6,2,22] =  424;
  cost[6,3,22] =  241;
  cost[6,4,22] =  408;
  cost[6,5,22] =  146;
  cost[6,6,22] =  0;
  cost[6,7,22] =  333;
  cost[6,8,22] =  72;
  cost[6,9,22] =  301;
  cost[6,10,22] =  418;
  cost[6,11,22] =  259;
  cost[6,12,22] =  270;
  cost[6,13,22] =  19;
  cost[6,14,22] =  238;
  cost[6,15,22] =  314;
  cost[6,16,22] =  86;
  cost[6,17,22] =  458;
  cost[6,18,22] =  426;
  cost[6,19,22] =  476;
  cost[6,20,22] =  58;
  cost[6,21,22] =  89;
  cost[7,0,22] =  138;
  cost[7,1,22] =  430;
  cost[7,2,22] =  69;
  cost[7,3,22] =  68;
  cost[7,4,22] =  105;
  cost[7,5,22] =  398;
  cost[7,6,22] =  333;
  cost[7,7,22] =  0;
  cost[7,8,22] =  46;
  cost[7,9,22] =  18;
  cost[7,10,22] =  383;
  cost[7,11,22] =  389;
  cost[7,12,22] =  248;
  cost[7,13,22] =  344;
  cost[7,14,22] =  59;
  cost[7,15,22] =  366;
  cost[7,16,22] =  391;
  cost[7,17,22] =  437;
  cost[7,18,22] =  146;
  cost[7,19,22] =  39;
  cost[7,20,22] =  255;
  cost[7,21,22] =  31;
  cost[8,0,22] =  457;
  cost[8,1,22] =  403;
  cost[8,2,22] =  120;
  cost[8,3,22] =  322;
  cost[8,4,22] =  406;
  cost[8,5,22] =  471;
  cost[8,6,22] =  72;
  cost[8,7,22] =  46;
  cost[8,8,22] =  0;
  cost[8,9,22] =  105;
  cost[8,10,22] =  104;
  cost[8,11,22] =  395;
  cost[8,12,22] =  39;
  cost[8,13,22] =  364;
  cost[8,14,22] =  182;
  cost[8,15,22] =  58;
  cost[8,16,22] =  118;
  cost[8,17,22] =  12;
  cost[8,18,22] =  145;
  cost[8,19,22] =  93;
  cost[8,20,22] =  439;
  cost[8,21,22] =  138;
  cost[9,0,22] =  313;
  cost[9,1,22] =  363;
  cost[9,2,22] =  412;
  cost[9,3,22] =  346;
  cost[9,4,22] =  31;
  cost[9,5,22] =  412;
  cost[9,6,22] =  301;
  cost[9,7,22] =  18;
  cost[9,8,22] =  105;
  cost[9,9,22] =  0;
  cost[9,10,22] =  45;
  cost[9,11,22] =  45;
  cost[9,12,22] =  197;
  cost[9,13,22] =  63;
  cost[9,14,22] =  429;
  cost[9,15,22] =  102;
  cost[9,16,22] =  312;
  cost[9,17,22] =  289;
  cost[9,18,22] =  162;
  cost[9,19,22] =  194;
  cost[9,20,22] =  197;
  cost[9,21,22] =  115;
  cost[10,0,22] =  420;
  cost[10,1,22] =  431;
  cost[10,2,22] =  258;
  cost[10,3,22] =  34;
  cost[10,4,22] =  186;
  cost[10,5,22] =  476;
  cost[10,6,22] =  418;
  cost[10,7,22] =  383;
  cost[10,8,22] =  104;
  cost[10,9,22] =  45;
  cost[10,10,22] =  0;
  cost[10,11,22] =  237;
  cost[10,12,22] =  370;
  cost[10,13,22] =  372;
  cost[10,14,22] =  331;
  cost[10,15,22] =  476;
  cost[10,16,22] =  476;
  cost[10,17,22] =  242;
  cost[10,18,22] =  31;
  cost[10,19,22] =  356;
  cost[10,20,22] =  424;
  cost[10,21,22] =  90;
  cost[11,0,22] =  266;
  cost[11,1,22] =  274;
  cost[11,2,22] =  480;
  cost[11,3,22] =  8;
  cost[11,4,22] =  247;
  cost[11,5,22] =  343;
  cost[11,6,22] =  259;
  cost[11,7,22] =  389;
  cost[11,8,22] =  395;
  cost[11,9,22] =  45;
  cost[11,10,22] =  237;
  cost[11,11,22] =  0;
  cost[11,12,22] =  437;
  cost[11,13,22] =  235;
  cost[11,14,22] =  84;
  cost[11,15,22] =  393;
  cost[11,16,22] =  374;
  cost[11,17,22] =  236;
  cost[11,18,22] =  438;
  cost[11,19,22] =  419;
  cost[11,20,22] =  434;
  cost[11,21,22] =  17;
  cost[12,0,22] =  384;
  cost[12,1,22] =  354;
  cost[12,2,22] =  185;
  cost[12,3,22] =  388;
  cost[12,4,22] =  84;
  cost[12,5,22] =  230;
  cost[12,6,22] =  270;
  cost[12,7,22] =  248;
  cost[12,8,22] =  39;
  cost[12,9,22] =  197;
  cost[12,10,22] =  370;
  cost[12,11,22] =  437;
  cost[12,12,22] =  0;
  cost[12,13,22] =  53;
  cost[12,14,22] =  330;
  cost[12,15,22] =  170;
  cost[12,16,22] =  215;
  cost[12,17,22] =  40;
  cost[12,18,22] =  367;
  cost[12,19,22] =  331;
  cost[12,20,22] =  381;
  cost[12,21,22] =  120;
  cost[13,0,22] =  409;
  cost[13,1,22] =  466;
  cost[13,2,22] =  443;
  cost[13,3,22] =  266;
  cost[13,4,22] =  187;
  cost[13,5,22] =  444;
  cost[13,6,22] =  19;
  cost[13,7,22] =  344;
  cost[13,8,22] =  364;
  cost[13,9,22] =  63;
  cost[13,10,22] =  372;
  cost[13,11,22] =  235;
  cost[13,12,22] =  53;
  cost[13,13,22] =  0;
  cost[13,14,22] =  270;
  cost[13,15,22] =  452;
  cost[13,16,22] =  210;
  cost[13,17,22] =  262;
  cost[13,18,22] =  210;
  cost[13,19,22] =  242;
  cost[13,20,22] =  135;
  cost[13,21,22] =  151;
  cost[14,0,22] =  287;
  cost[14,1,22] =  450;
  cost[14,2,22] =  322;
  cost[14,3,22] =  78;
  cost[14,4,22] =  452;
  cost[14,5,22] =  154;
  cost[14,6,22] =  238;
  cost[14,7,22] =  59;
  cost[14,8,22] =  182;
  cost[14,9,22] =  429;
  cost[14,10,22] =  331;
  cost[14,11,22] =  84;
  cost[14,12,22] =  330;
  cost[14,13,22] =  270;
  cost[14,14,22] =  0;
  cost[14,15,22] =  126;
  cost[14,16,22] =  105;
  cost[14,17,22] =  84;
  cost[14,18,22] =  211;
  cost[14,19,22] =  14;
  cost[14,20,22] =  458;
  cost[14,21,22] =  448;
  cost[15,0,22] =  302;
  cost[15,1,22] =  476;
  cost[15,2,22] =  106;
  cost[15,3,22] =  355;
  cost[15,4,22] =  84;
  cost[15,5,22] =  117;
  cost[15,6,22] =  314;
  cost[15,7,22] =  366;
  cost[15,8,22] =  58;
  cost[15,9,22] =  102;
  cost[15,10,22] =  476;
  cost[15,11,22] =  393;
  cost[15,12,22] =  170;
  cost[15,13,22] =  452;
  cost[15,14,22] =  126;
  cost[15,15,22] =  0;
  cost[15,16,22] =  393;
  cost[15,17,22] =  398;
  cost[15,18,22] =  471;
  cost[15,19,22] =  274;
  cost[15,20,22] =  452;
  cost[15,21,22] =  317;
  cost[16,0,22] =  457;
  cost[16,1,22] =  339;
  cost[16,2,22] =  81;
  cost[16,3,22] =  301;
  cost[16,4,22] =  462;
  cost[16,5,22] =  47;
  cost[16,6,22] =  86;
  cost[16,7,22] =  391;
  cost[16,8,22] =  118;
  cost[16,9,22] =  312;
  cost[16,10,22] =  476;
  cost[16,11,22] =  374;
  cost[16,12,22] =  215;
  cost[16,13,22] =  210;
  cost[16,14,22] =  105;
  cost[16,15,22] =  393;
  cost[16,16,22] =  0;
  cost[16,17,22] =  184;
  cost[16,18,22] =  358;
  cost[16,19,22] =  328;
  cost[16,20,22] =  31;
  cost[16,21,22] =  255;
  cost[17,0,22] =  34;
  cost[17,1,22] =  105;
  cost[17,2,22] =  325;
  cost[17,3,22] =  451;
  cost[17,4,22] =  44;
  cost[17,5,22] =  377;
  cost[17,6,22] =  458;
  cost[17,7,22] =  437;
  cost[17,8,22] =  12;
  cost[17,9,22] =  289;
  cost[17,10,22] =  242;
  cost[17,11,22] =  236;
  cost[17,12,22] =  40;
  cost[17,13,22] =  262;
  cost[17,14,22] =  84;
  cost[17,15,22] =  398;
  cost[17,16,22] =  184;
  cost[17,17,22] =  0;
  cost[17,18,22] =  249;
  cost[17,19,22] =  41;
  cost[17,20,22] =  416;
  cost[17,21,22] =  460;
  cost[18,0,22] =  231;
  cost[18,1,22] =  449;
  cost[18,2,22] =  52;
  cost[18,3,22] =  295;
  cost[18,4,22] =  67;
  cost[18,5,22] =  263;
  cost[18,6,22] =  426;
  cost[18,7,22] =  146;
  cost[18,8,22] =  145;
  cost[18,9,22] =  162;
  cost[18,10,22] =  31;
  cost[18,11,22] =  438;
  cost[18,12,22] =  367;
  cost[18,13,22] =  210;
  cost[18,14,22] =  211;
  cost[18,15,22] =  471;
  cost[18,16,22] =  358;
  cost[18,17,22] =  249;
  cost[18,18,22] =  0;
  cost[18,19,22] =  143;
  cost[18,20,22] =  218;
  cost[18,21,22] =  440;
  cost[19,0,22] =  472;
  cost[19,1,22] =  169;
  cost[19,2,22] =  0;
  cost[19,3,22] =  371;
  cost[19,4,22] =  220;
  cost[19,5,22] =  131;
  cost[19,6,22] =  476;
  cost[19,7,22] =  39;
  cost[19,8,22] =  93;
  cost[19,9,22] =  194;
  cost[19,10,22] =  356;
  cost[19,11,22] =  419;
  cost[19,12,22] =  331;
  cost[19,13,22] =  242;
  cost[19,14,22] =  14;
  cost[19,15,22] =  274;
  cost[19,16,22] =  328;
  cost[19,17,22] =  41;
  cost[19,18,22] =  143;
  cost[19,19,22] =  0;
  cost[19,20,22] =  66;
  cost[19,21,22] =  82;
  cost[20,0,22] =  188;
  cost[20,1,22] =  41;
  cost[20,2,22] =  205;
  cost[20,3,22] =  87;
  cost[20,4,22] =  112;
  cost[20,5,22] =  302;
  cost[20,6,22] =  58;
  cost[20,7,22] =  255;
  cost[20,8,22] =  439;
  cost[20,9,22] =  197;
  cost[20,10,22] =  424;
  cost[20,11,22] =  434;
  cost[20,12,22] =  381;
  cost[20,13,22] =  135;
  cost[20,14,22] =  458;
  cost[20,15,22] =  452;
  cost[20,16,22] =  31;
  cost[20,17,22] =  416;
  cost[20,18,22] =  218;
  cost[20,19,22] =  66;
  cost[20,20,22] =  0;
  cost[20,21,22] =  151;
  cost[21,0,22] =  360;
  cost[21,1,22] =  232;
  cost[21,2,22] =  0;
  cost[21,3,22] =  223;
  cost[21,4,22] =  390;
  cost[21,5,22] =  369;
  cost[21,6,22] =  89;
  cost[21,7,22] =  31;
  cost[21,8,22] =  138;
  cost[21,9,22] =  115;
  cost[21,10,22] =  90;
  cost[21,11,22] =  17;
  cost[21,12,22] =  120;
  cost[21,13,22] =  151;
  cost[21,14,22] =  448;
  cost[21,15,22] =  317;
  cost[21,16,22] =  255;
  cost[21,17,22] =  460;
  cost[21,18,22] =  440;
  cost[21,19,22] =  82;
  cost[21,20,22] =  151;
  cost[21,21,22] =  0;
  cost[0,0,23] =  0;
  cost[0,1,23] =  125;
  cost[0,2,23] =  258;
  cost[0,3,23] =  385;
  cost[0,4,23] =  35;
  cost[0,5,23] =  173;
  cost[0,6,23] =  372;
  cost[0,7,23] =  309;
  cost[0,8,23] =  141;
  cost[0,9,23] =  206;
  cost[0,10,23] =  269;
  cost[0,11,23] =  325;
  cost[0,12,23] =  80;
  cost[0,13,23] =  114;
  cost[0,14,23] =  357;
  cost[0,15,23] =  336;
  cost[0,16,23] =  78;
  cost[0,17,23] =  123;
  cost[0,18,23] =  377;
  cost[0,19,23] =  11;
  cost[0,20,23] =  99;
  cost[0,21,23] =  198;
  cost[1,0,23] =  125;
  cost[1,1,23] =  0;
  cost[1,2,23] =  317;
  cost[1,3,23] =  154;
  cost[1,4,23] =  451;
  cost[1,5,23] =  384;
  cost[1,6,23] =  237;
  cost[1,7,23] =  368;
  cost[1,8,23] =  51;
  cost[1,9,23] =  48;
  cost[1,10,23] =  300;
  cost[1,11,23] =  177;
  cost[1,12,23] =  307;
  cost[1,13,23] =  201;
  cost[1,14,23] =  212;
  cost[1,15,23] =  480;
  cost[1,16,23] =  90;
  cost[1,17,23] =  37;
  cost[1,18,23] =  138;
  cost[1,19,23] =  296;
  cost[1,20,23] =  307;
  cost[1,21,23] =  464;
  cost[2,0,23] =  258;
  cost[2,1,23] =  317;
  cost[2,2,23] =  0;
  cost[2,3,23] =  421;
  cost[2,4,23] =  337;
  cost[2,5,23] =  229;
  cost[2,6,23] =  16;
  cost[2,7,23] =  460;
  cost[2,8,23] =  122;
  cost[2,9,23] =  28;
  cost[2,10,23] =  76;
  cost[2,11,23] =  321;
  cost[2,12,23] =  183;
  cost[2,13,23] =  394;
  cost[2,14,23] =  475;
  cost[2,15,23] =  151;
  cost[2,16,23] =  294;
  cost[2,17,23] =  229;
  cost[2,18,23] =  35;
  cost[2,19,23] =  346;
  cost[2,20,23] =  277;
  cost[2,21,23] =  336;
  cost[3,0,23] =  385;
  cost[3,1,23] =  154;
  cost[3,2,23] =  421;
  cost[3,3,23] =  0;
  cost[3,4,23] =  100;
  cost[3,5,23] =  54;
  cost[3,6,23] =  251;
  cost[3,7,23] =  97;
  cost[3,8,23] =  144;
  cost[3,9,23] =  289;
  cost[3,10,23] =  235;
  cost[3,11,23] =  441;
  cost[3,12,23] =  113;
  cost[3,13,23] =  216;
  cost[3,14,23] =  334;
  cost[3,15,23] =  50;
  cost[3,16,23] =  69;
  cost[3,17,23] =  79;
  cost[3,18,23] =  67;
  cost[3,19,23] =  46;
  cost[3,20,23] =  202;
  cost[3,21,23] =  95;
  cost[4,0,23] =  35;
  cost[4,1,23] =  451;
  cost[4,2,23] =  337;
  cost[4,3,23] =  100;
  cost[4,4,23] =  0;
  cost[4,5,23] =  39;
  cost[4,6,23] =  279;
  cost[4,7,23] =  33;
  cost[4,8,23] =  31;
  cost[4,9,23] =  430;
  cost[4,10,23] =  328;
  cost[4,11,23] =  261;
  cost[4,12,23] =  465;
  cost[4,13,23] =  190;
  cost[4,14,23] =  54;
  cost[4,15,23] =  318;
  cost[4,16,23] =  230;
  cost[4,17,23] =  154;
  cost[4,18,23] =  372;
  cost[4,19,23] =  482;
  cost[4,20,23] =  252;
  cost[4,21,23] =  33;
  cost[5,0,23] =  173;
  cost[5,1,23] =  384;
  cost[5,2,23] =  229;
  cost[5,3,23] =  54;
  cost[5,4,23] =  39;
  cost[5,5,23] =  0;
  cost[5,6,23] =  3;
  cost[5,7,23] =  474;
  cost[5,8,23] =  401;
  cost[5,9,23] =  219;
  cost[5,10,23] =  325;
  cost[5,11,23] =  451;
  cost[5,12,23] =  289;
  cost[5,13,23] =  405;
  cost[5,14,23] =  35;
  cost[5,15,23] =  336;
  cost[5,16,23] =  123;
  cost[5,17,23] =  130;
  cost[5,18,23] =  459;
  cost[5,19,23] =  163;
  cost[5,20,23] =  410;
  cost[5,21,23] =  9;
  cost[6,0,23] =  372;
  cost[6,1,23] =  237;
  cost[6,2,23] =  16;
  cost[6,3,23] =  251;
  cost[6,4,23] =  279;
  cost[6,5,23] =  3;
  cost[6,6,23] =  0;
  cost[6,7,23] =  356;
  cost[6,8,23] =  337;
  cost[6,9,23] =  456;
  cost[6,10,23] =  338;
  cost[6,11,23] =  44;
  cost[6,12,23] =  27;
  cost[6,13,23] =  172;
  cost[6,14,23] =  275;
  cost[6,15,23] =  182;
  cost[6,16,23] =  61;
  cost[6,17,23] =  273;
  cost[6,18,23] =  434;
  cost[6,19,23] =  94;
  cost[6,20,23] =  78;
  cost[6,21,23] =  438;
  cost[7,0,23] =  309;
  cost[7,1,23] =  368;
  cost[7,2,23] =  460;
  cost[7,3,23] =  97;
  cost[7,4,23] =  33;
  cost[7,5,23] =  474;
  cost[7,6,23] =  356;
  cost[7,7,23] =  0;
  cost[7,8,23] =  479;
  cost[7,9,23] =  174;
  cost[7,10,23] =  410;
  cost[7,11,23] =  447;
  cost[7,12,23] =  464;
  cost[7,13,23] =  331;
  cost[7,14,23] =  482;
  cost[7,15,23] =  316;
  cost[7,16,23] =  455;
  cost[7,17,23] =  129;
  cost[7,18,23] =  292;
  cost[7,19,23] =  135;
  cost[7,20,23] =  55;
  cost[7,21,23] =  302;
  cost[8,0,23] =  141;
  cost[8,1,23] =  51;
  cost[8,2,23] =  122;
  cost[8,3,23] =  144;
  cost[8,4,23] =  31;
  cost[8,5,23] =  401;
  cost[8,6,23] =  337;
  cost[8,7,23] =  479;
  cost[8,8,23] =  0;
  cost[8,9,23] =  411;
  cost[8,10,23] =  155;
  cost[8,11,23] =  303;
  cost[8,12,23] =  266;
  cost[8,13,23] =  200;
  cost[8,14,23] =  331;
  cost[8,15,23] =  439;
  cost[8,16,23] =  475;
  cost[8,17,23] =  29;
  cost[8,18,23] =  16;
  cost[8,19,23] =  265;
  cost[8,20,23] =  463;
  cost[8,21,23] =  110;
  cost[9,0,23] =  206;
  cost[9,1,23] =  48;
  cost[9,2,23] =  28;
  cost[9,3,23] =  289;
  cost[9,4,23] =  430;
  cost[9,5,23] =  219;
  cost[9,6,23] =  456;
  cost[9,7,23] =  174;
  cost[9,8,23] =  411;
  cost[9,9,23] =  0;
  cost[9,10,23] =  418;
  cost[9,11,23] =  195;
  cost[9,12,23] =  338;
  cost[9,13,23] =  108;
  cost[9,14,23] =  121;
  cost[9,15,23] =  302;
  cost[9,16,23] =  88;
  cost[9,17,23] =  452;
  cost[9,18,23] =  300;
  cost[9,19,23] =  405;
  cost[9,20,23] =  424;
  cost[9,21,23] =  429;
  cost[10,0,23] =  269;
  cost[10,1,23] =  300;
  cost[10,2,23] =  76;
  cost[10,3,23] =  235;
  cost[10,4,23] =  328;
  cost[10,5,23] =  325;
  cost[10,6,23] =  338;
  cost[10,7,23] =  410;
  cost[10,8,23] =  155;
  cost[10,9,23] =  418;
  cost[10,10,23] =  0;
  cost[10,11,23] =  75;
  cost[10,12,23] =  1;
  cost[10,13,23] =  32;
  cost[10,14,23] =  406;
  cost[10,15,23] =  412;
  cost[10,16,23] =  188;
  cost[10,17,23] =  226;
  cost[10,18,23] =  195;
  cost[10,19,23] =  388;
  cost[10,20,23] =  74;
  cost[10,21,23] =  150;
  cost[11,0,23] =  325;
  cost[11,1,23] =  177;
  cost[11,2,23] =  321;
  cost[11,3,23] =  441;
  cost[11,4,23] =  261;
  cost[11,5,23] =  451;
  cost[11,6,23] =  44;
  cost[11,7,23] =  447;
  cost[11,8,23] =  303;
  cost[11,9,23] =  195;
  cost[11,10,23] =  75;
  cost[11,11,23] =  0;
  cost[11,12,23] =  103;
  cost[11,13,23] =  166;
  cost[11,14,23] =  161;
  cost[11,15,23] =  83;
  cost[11,16,23] =  276;
  cost[11,17,23] =  21;
  cost[11,18,23] =  17;
  cost[11,19,23] =  471;
  cost[11,20,23] =  359;
  cost[11,21,23] =  126;
  cost[12,0,23] =  80;
  cost[12,1,23] =  307;
  cost[12,2,23] =  183;
  cost[12,3,23] =  113;
  cost[12,4,23] =  465;
  cost[12,5,23] =  289;
  cost[12,6,23] =  27;
  cost[12,7,23] =  464;
  cost[12,8,23] =  266;
  cost[12,9,23] =  338;
  cost[12,10,23] =  1;
  cost[12,11,23] =  103;
  cost[12,12,23] =  0;
  cost[12,13,23] =  178;
  cost[12,14,23] =  214;
  cost[12,15,23] =  78;
  cost[12,16,23] =  478;
  cost[12,17,23] =  136;
  cost[12,18,23] =  18;
  cost[12,19,23] =  424;
  cost[12,20,23] =  350;
  cost[12,21,23] =  94;
  cost[13,0,23] =  114;
  cost[13,1,23] =  201;
  cost[13,2,23] =  394;
  cost[13,3,23] =  216;
  cost[13,4,23] =  190;
  cost[13,5,23] =  405;
  cost[13,6,23] =  172;
  cost[13,7,23] =  331;
  cost[13,8,23] =  200;
  cost[13,9,23] =  108;
  cost[13,10,23] =  32;
  cost[13,11,23] =  166;
  cost[13,12,23] =  178;
  cost[13,13,23] =  0;
  cost[13,14,23] =  383;
  cost[13,15,23] =  17;
  cost[13,16,23] =  354;
  cost[13,17,23] =  87;
  cost[13,18,23] =  244;
  cost[13,19,23] =  65;
  cost[13,20,23] =  476;
  cost[13,21,23] =  318;
  cost[14,0,23] =  357;
  cost[14,1,23] =  212;
  cost[14,2,23] =  475;
  cost[14,3,23] =  334;
  cost[14,4,23] =  54;
  cost[14,5,23] =  35;
  cost[14,6,23] =  275;
  cost[14,7,23] =  482;
  cost[14,8,23] =  331;
  cost[14,9,23] =  121;
  cost[14,10,23] =  406;
  cost[14,11,23] =  161;
  cost[14,12,23] =  214;
  cost[14,13,23] =  383;
  cost[14,14,23] =  0;
  cost[14,15,23] =  372;
  cost[14,16,23] =  422;
  cost[14,17,23] =  382;
  cost[14,18,23] =  50;
  cost[14,19,23] =  21;
  cost[14,20,23] =  175;
  cost[14,21,23] =  71;
  cost[15,0,23] =  336;
  cost[15,1,23] =  480;
  cost[15,2,23] =  151;
  cost[15,3,23] =  50;
  cost[15,4,23] =  318;
  cost[15,5,23] =  336;
  cost[15,6,23] =  182;
  cost[15,7,23] =  316;
  cost[15,8,23] =  439;
  cost[15,9,23] =  302;
  cost[15,10,23] =  412;
  cost[15,11,23] =  83;
  cost[15,12,23] =  78;
  cost[15,13,23] =  17;
  cost[15,14,23] =  372;
  cost[15,15,23] =  0;
  cost[15,16,23] =  163;
  cost[15,17,23] =  431;
  cost[15,18,23] =  165;
  cost[15,19,23] =  272;
  cost[15,20,23] =  125;
  cost[15,21,23] =  380;
  cost[16,0,23] =  78;
  cost[16,1,23] =  90;
  cost[16,2,23] =  294;
  cost[16,3,23] =  69;
  cost[16,4,23] =  230;
  cost[16,5,23] =  123;
  cost[16,6,23] =  61;
  cost[16,7,23] =  455;
  cost[16,8,23] =  475;
  cost[16,9,23] =  88;
  cost[16,10,23] =  188;
  cost[16,11,23] =  276;
  cost[16,12,23] =  478;
  cost[16,13,23] =  354;
  cost[16,14,23] =  422;
  cost[16,15,23] =  163;
  cost[16,16,23] =  0;
  cost[16,17,23] =  120;
  cost[16,18,23] =  32;
  cost[16,19,23] =  369;
  cost[16,20,23] =  60;
  cost[16,21,23] =  383;
  cost[17,0,23] =  123;
  cost[17,1,23] =  37;
  cost[17,2,23] =  229;
  cost[17,3,23] =  79;
  cost[17,4,23] =  154;
  cost[17,5,23] =  130;
  cost[17,6,23] =  273;
  cost[17,7,23] =  129;
  cost[17,8,23] =  29;
  cost[17,9,23] =  452;
  cost[17,10,23] =  226;
  cost[17,11,23] =  21;
  cost[17,12,23] =  136;
  cost[17,13,23] =  87;
  cost[17,14,23] =  382;
  cost[17,15,23] =  431;
  cost[17,16,23] =  120;
  cost[17,17,23] =  0;
  cost[17,18,23] =  1;
  cost[17,19,23] =  283;
  cost[17,20,23] =  480;
  cost[17,21,23] =  356;
  cost[18,0,23] =  377;
  cost[18,1,23] =  138;
  cost[18,2,23] =  35;
  cost[18,3,23] =  67;
  cost[18,4,23] =  372;
  cost[18,5,23] =  459;
  cost[18,6,23] =  434;
  cost[18,7,23] =  292;
  cost[18,8,23] =  16;
  cost[18,9,23] =  300;
  cost[18,10,23] =  195;
  cost[18,11,23] =  17;
  cost[18,12,23] =  18;
  cost[18,13,23] =  244;
  cost[18,14,23] =  50;
  cost[18,15,23] =  165;
  cost[18,16,23] =  32;
  cost[18,17,23] =  1;
  cost[18,18,23] =  0;
  cost[18,19,23] =  241;
  cost[18,20,23] =  421;
  cost[18,21,23] =  363;
  cost[19,0,23] =  11;
  cost[19,1,23] =  296;
  cost[19,2,23] =  346;
  cost[19,3,23] =  46;
  cost[19,4,23] =  482;
  cost[19,5,23] =  163;
  cost[19,6,23] =  94;
  cost[19,7,23] =  135;
  cost[19,8,23] =  265;
  cost[19,9,23] =  405;
  cost[19,10,23] =  388;
  cost[19,11,23] =  471;
  cost[19,12,23] =  424;
  cost[19,13,23] =  65;
  cost[19,14,23] =  21;
  cost[19,15,23] =  272;
  cost[19,16,23] =  369;
  cost[19,17,23] =  283;
  cost[19,18,23] =  241;
  cost[19,19,23] =  0;
  cost[19,20,23] =  153;
  cost[19,21,23] =  252;
  cost[20,0,23] =  99;
  cost[20,1,23] =  307;
  cost[20,2,23] =  277;
  cost[20,3,23] =  202;
  cost[20,4,23] =  252;
  cost[20,5,23] =  410;
  cost[20,6,23] =  78;
  cost[20,7,23] =  55;
  cost[20,8,23] =  463;
  cost[20,9,23] =  424;
  cost[20,10,23] =  74;
  cost[20,11,23] =  359;
  cost[20,12,23] =  350;
  cost[20,13,23] =  476;
  cost[20,14,23] =  175;
  cost[20,15,23] =  125;
  cost[20,16,23] =  60;
  cost[20,17,23] =  480;
  cost[20,18,23] =  421;
  cost[20,19,23] =  153;
  cost[20,20,23] =  0;
  cost[20,21,23] =  52;
  cost[21,0,23] =  198;
  cost[21,1,23] =  464;
  cost[21,2,23] =  336;
  cost[21,3,23] =  95;
  cost[21,4,23] =  33;
  cost[21,5,23] =  9;
  cost[21,6,23] =  438;
  cost[21,7,23] =  302;
  cost[21,8,23] =  110;
  cost[21,9,23] =  429;
  cost[21,10,23] =  150;
  cost[21,11,23] =  126;
  cost[21,12,23] =  94;
  cost[21,13,23] =  318;
  cost[21,14,23] =  71;
  cost[21,15,23] =  380;
  cost[21,16,23] =  383;
  cost[21,17,23] =  356;
  cost[21,18,23] =  363;
  cost[21,19,23] =  252;
  cost[21,20,23] =  52;
  cost[21,21,23] =  0;
  cost[0,0,24] =  0;
  cost[0,1,24] =  227;
  cost[0,2,24] =  374;
  cost[0,3,24] =  74;
  cost[0,4,24] =  390;
  cost[0,5,24] =  322;
  cost[0,6,24] =  240;
  cost[0,7,24] =  179;
  cost[0,8,24] =  447;
  cost[0,9,24] =  136;
  cost[0,10,24] =  46;
  cost[0,11,24] =  84;
  cost[0,12,24] =  169;
  cost[0,13,24] =  415;
  cost[0,14,24] =  144;
  cost[0,15,24] =  69;
  cost[0,16,24] =  394;
  cost[0,17,24] =  146;
  cost[0,18,24] =  352;
  cost[0,19,24] =  391;
  cost[0,20,24] =  18;
  cost[0,21,24] =  239;
  cost[1,0,24] =  227;
  cost[1,1,24] =  0;
  cost[1,2,24] =  440;
  cost[1,3,24] =  118;
  cost[1,4,24] =  224;
  cost[1,5,24] =  109;
  cost[1,6,24] =  371;
  cost[1,7,24] =  238;
  cost[1,8,24] =  162;
  cost[1,9,24] =  189;
  cost[1,10,24] =  273;
  cost[1,11,24] =  389;
  cost[1,12,24] =  80;
  cost[1,13,24] =  347;
  cost[1,14,24] =  296;
  cost[1,15,24] =  402;
  cost[1,16,24] =  104;
  cost[1,17,24] =  476;
  cost[1,18,24] =  366;
  cost[1,19,24] =  240;
  cost[1,20,24] =  38;
  cost[1,21,24] =  450;
  cost[2,0,24] =  374;
  cost[2,1,24] =  440;
  cost[2,2,24] =  0;
  cost[2,3,24] =  453;
  cost[2,4,24] =  111;
  cost[2,5,24] =  479;
  cost[2,6,24] =  364;
  cost[2,7,24] =  257;
  cost[2,8,24] =  347;
  cost[2,9,24] =  272;
  cost[2,10,24] =  276;
  cost[2,11,24] =  103;
  cost[2,12,24] =  421;
  cost[2,13,24] =  232;
  cost[2,14,24] =  222;
  cost[2,15,24] =  162;
  cost[2,16,24] =  342;
  cost[2,17,24] =  109;
  cost[2,18,24] =  400;
  cost[2,19,24] =  20;
  cost[2,20,24] =  298;
  cost[2,21,24] =  189;
  cost[3,0,24] =  74;
  cost[3,1,24] =  118;
  cost[3,2,24] =  453;
  cost[3,3,24] =  0;
  cost[3,4,24] =  379;
  cost[3,5,24] =  53;
  cost[3,6,24] =  223;
  cost[3,7,24] =  297;
  cost[3,8,24] =  157;
  cost[3,9,24] =  215;
  cost[3,10,24] =  180;
  cost[3,11,24] =  398;
  cost[3,12,24] =  253;
  cost[3,13,24] =  146;
  cost[3,14,24] =  324;
  cost[3,15,24] =  223;
  cost[3,16,24] =  258;
  cost[3,17,24] =  320;
  cost[3,18,24] =  103;
  cost[3,19,24] =  32;
  cost[3,20,24] =  183;
  cost[3,21,24] =  376;
  cost[4,0,24] =  390;
  cost[4,1,24] =  224;
  cost[4,2,24] =  111;
  cost[4,3,24] =  379;
  cost[4,4,24] =  0;
  cost[4,5,24] =  287;
  cost[4,6,24] =  313;
  cost[4,7,24] =  56;
  cost[4,8,24] =  25;
  cost[4,9,24] =  475;
  cost[4,10,24] =  399;
  cost[4,11,24] =  134;
  cost[4,12,24] =  392;
  cost[4,13,24] =  420;
  cost[4,14,24] =  433;
  cost[4,15,24] =  98;
  cost[4,16,24] =  346;
  cost[4,17,24] =  328;
  cost[4,18,24] =  152;
  cost[4,19,24] =  85;
  cost[4,20,24] =  142;
  cost[4,21,24] =  310;
  cost[5,0,24] =  322;
  cost[5,1,24] =  109;
  cost[5,2,24] =  479;
  cost[5,3,24] =  53;
  cost[5,4,24] =  287;
  cost[5,5,24] =  0;
  cost[5,6,24] =  322;
  cost[5,7,24] =  224;
  cost[5,8,24] =  70;
  cost[5,9,24] =  469;
  cost[5,10,24] =  65;
  cost[5,11,24] =  294;
  cost[5,12,24] =  243;
  cost[5,13,24] =  385;
  cost[5,14,24] =  397;
  cost[5,15,24] =  275;
  cost[5,16,24] =  85;
  cost[5,17,24] =  290;
  cost[5,18,24] =  100;
  cost[5,19,24] =  372;
  cost[5,20,24] =  119;
  cost[5,21,24] =  157;
  cost[6,0,24] =  240;
  cost[6,1,24] =  371;
  cost[6,2,24] =  364;
  cost[6,3,24] =  223;
  cost[6,4,24] =  313;
  cost[6,5,24] =  322;
  cost[6,6,24] =  0;
  cost[6,7,24] =  111;
  cost[6,8,24] =  72;
  cost[6,9,24] =  48;
  cost[6,10,24] =  20;
  cost[6,11,24] =  8;
  cost[6,12,24] =  481;
  cost[6,13,24] =  118;
  cost[6,14,24] =  355;
  cost[6,15,24] =  325;
  cost[6,16,24] =  271;
  cost[6,17,24] =  440;
  cost[6,18,24] =  467;
  cost[6,19,24] =  97;
  cost[6,20,24] =  258;
  cost[6,21,24] =  305;
  cost[7,0,24] =  179;
  cost[7,1,24] =  238;
  cost[7,2,24] =  257;
  cost[7,3,24] =  297;
  cost[7,4,24] =  56;
  cost[7,5,24] =  224;
  cost[7,6,24] =  111;
  cost[7,7,24] =  0;
  cost[7,8,24] =  329;
  cost[7,9,24] =  291;
  cost[7,10,24] =  388;
  cost[7,11,24] =  139;
  cost[7,12,24] =  50;
  cost[7,13,24] =  290;
  cost[7,14,24] =  53;
  cost[7,15,24] =  326;
  cost[7,16,24] =  375;
  cost[7,17,24] =  343;
  cost[7,18,24] =  426;
  cost[7,19,24] =  264;
  cost[7,20,24] =  463;
  cost[7,21,24] =  100;
  cost[8,0,24] =  447;
  cost[8,1,24] =  162;
  cost[8,2,24] =  347;
  cost[8,3,24] =  157;
  cost[8,4,24] =  25;
  cost[8,5,24] =  70;
  cost[8,6,24] =  72;
  cost[8,7,24] =  329;
  cost[8,8,24] =  0;
  cost[8,9,24] =  91;
  cost[8,10,24] =  172;
  cost[8,11,24] =  226;
  cost[8,12,24] =  111;
  cost[8,13,24] =  181;
  cost[8,14,24] =  223;
  cost[8,15,24] =  230;
  cost[8,16,24] =  52;
  cost[8,17,24] =  64;
  cost[8,18,24] =  17;
  cost[8,19,24] =  9;
  cost[8,20,24] =  48;
  cost[8,21,24] =  115;
  cost[9,0,24] =  136;
  cost[9,1,24] =  189;
  cost[9,2,24] =  272;
  cost[9,3,24] =  215;
  cost[9,4,24] =  475;
  cost[9,5,24] =  469;
  cost[9,6,24] =  48;
  cost[9,7,24] =  291;
  cost[9,8,24] =  91;
  cost[9,9,24] =  0;
  cost[9,10,24] =  354;
  cost[9,11,24] =  437;
  cost[9,12,24] =  112;
  cost[9,13,24] =  161;
  cost[9,14,24] =  342;
  cost[9,15,24] =  251;
  cost[9,16,24] =  212;
  cost[9,17,24] =  148;
  cost[9,18,24] =  305;
  cost[9,19,24] =  54;
  cost[9,20,24] =  40;
  cost[9,21,24] =  164;
  cost[10,0,24] =  46;
  cost[10,1,24] =  273;
  cost[10,2,24] =  276;
  cost[10,3,24] =  180;
  cost[10,4,24] =  399;
  cost[10,5,24] =  65;
  cost[10,6,24] =  20;
  cost[10,7,24] =  388;
  cost[10,8,24] =  172;
  cost[10,9,24] =  354;
  cost[10,10,24] =  0;
  cost[10,11,24] =  304;
  cost[10,12,24] =  143;
  cost[10,13,24] =  97;
  cost[10,14,24] =  482;
  cost[10,15,24] =  235;
  cost[10,16,24] =  270;
  cost[10,17,24] =  225;
  cost[10,18,24] =  346;
  cost[10,19,24] =  452;
  cost[10,20,24] =  448;
  cost[10,21,24] =  93;
  cost[11,0,24] =  84;
  cost[11,1,24] =  389;
  cost[11,2,24] =  103;
  cost[11,3,24] =  398;
  cost[11,4,24] =  134;
  cost[11,5,24] =  294;
  cost[11,6,24] =  8;
  cost[11,7,24] =  139;
  cost[11,8,24] =  226;
  cost[11,9,24] =  437;
  cost[11,10,24] =  304;
  cost[11,11,24] =  0;
  cost[11,12,24] =  29;
  cost[11,13,24] =  110;
  cost[11,14,24] =  30;
  cost[11,15,24] =  77;
  cost[11,16,24] =  226;
  cost[11,17,24] =  297;
  cost[11,18,24] =  431;
  cost[11,19,24] =  180;
  cost[11,20,24] =  410;
  cost[11,21,24] =  109;
  cost[12,0,24] =  169;
  cost[12,1,24] =  80;
  cost[12,2,24] =  421;
  cost[12,3,24] =  253;
  cost[12,4,24] =  392;
  cost[12,5,24] =  243;
  cost[12,6,24] =  481;
  cost[12,7,24] =  50;
  cost[12,8,24] =  111;
  cost[12,9,24] =  112;
  cost[12,10,24] =  143;
  cost[12,11,24] =  29;
  cost[12,12,24] =  0;
  cost[12,13,24] =  178;
  cost[12,14,24] =  321;
  cost[12,15,24] =  186;
  cost[12,16,24] =  483;
  cost[12,17,24] =  376;
  cost[12,18,24] =  226;
  cost[12,19,24] =  163;
  cost[12,20,24] =  374;
  cost[12,21,24] =  47;
  cost[13,0,24] =  415;
  cost[13,1,24] =  347;
  cost[13,2,24] =  232;
  cost[13,3,24] =  146;
  cost[13,4,24] =  420;
  cost[13,5,24] =  385;
  cost[13,6,24] =  118;
  cost[13,7,24] =  290;
  cost[13,8,24] =  181;
  cost[13,9,24] =  161;
  cost[13,10,24] =  97;
  cost[13,11,24] =  110;
  cost[13,12,24] =  178;
  cost[13,13,24] =  0;
  cost[13,14,24] =  472;
  cost[13,15,24] =  45;
  cost[13,16,24] =  58;
  cost[13,17,24] =  258;
  cost[13,18,24] =  270;
  cost[13,19,24] =  405;
  cost[13,20,24] =  227;
  cost[13,21,24] =  235;
  cost[14,0,24] =  144;
  cost[14,1,24] =  296;
  cost[14,2,24] =  222;
  cost[14,3,24] =  324;
  cost[14,4,24] =  433;
  cost[14,5,24] =  397;
  cost[14,6,24] =  355;
  cost[14,7,24] =  53;
  cost[14,8,24] =  223;
  cost[14,9,24] =  342;
  cost[14,10,24] =  482;
  cost[14,11,24] =  30;
  cost[14,12,24] =  321;
  cost[14,13,24] =  472;
  cost[14,14,24] =  0;
  cost[14,15,24] =  247;
  cost[14,16,24] =  264;
  cost[14,17,24] =  125;
  cost[14,18,24] =  277;
  cost[14,19,24] =  342;
  cost[14,20,24] =  351;
  cost[14,21,24] =  91;
  cost[15,0,24] =  69;
  cost[15,1,24] =  402;
  cost[15,2,24] =  162;
  cost[15,3,24] =  223;
  cost[15,4,24] =  98;
  cost[15,5,24] =  275;
  cost[15,6,24] =  325;
  cost[15,7,24] =  326;
  cost[15,8,24] =  230;
  cost[15,9,24] =  251;
  cost[15,10,24] =  235;
  cost[15,11,24] =  77;
  cost[15,12,24] =  186;
  cost[15,13,24] =  45;
  cost[15,14,24] =  247;
  cost[15,15,24] =  0;
  cost[15,16,24] =  47;
  cost[15,17,24] =  17;
  cost[15,18,24] =  399;
  cost[15,19,24] =  86;
  cost[15,20,24] =  195;
  cost[15,21,24] =  236;
  cost[16,0,24] =  394;
  cost[16,1,24] =  104;
  cost[16,2,24] =  342;
  cost[16,3,24] =  258;
  cost[16,4,24] =  346;
  cost[16,5,24] =  85;
  cost[16,6,24] =  271;
  cost[16,7,24] =  375;
  cost[16,8,24] =  52;
  cost[16,9,24] =  212;
  cost[16,10,24] =  270;
  cost[16,11,24] =  226;
  cost[16,12,24] =  483;
  cost[16,13,24] =  58;
  cost[16,14,24] =  264;
  cost[16,15,24] =  47;
  cost[16,16,24] =  0;
  cost[16,17,24] =  194;
  cost[16,18,24] =  129;
  cost[16,19,24] =  15;
  cost[16,20,24] =  358;
  cost[16,21,24] =  19;
  cost[17,0,24] =  146;
  cost[17,1,24] =  476;
  cost[17,2,24] =  109;
  cost[17,3,24] =  320;
  cost[17,4,24] =  328;
  cost[17,5,24] =  290;
  cost[17,6,24] =  440;
  cost[17,7,24] =  343;
  cost[17,8,24] =  64;
  cost[17,9,24] =  148;
  cost[17,10,24] =  225;
  cost[17,11,24] =  297;
  cost[17,12,24] =  376;
  cost[17,13,24] =  258;
  cost[17,14,24] =  125;
  cost[17,15,24] =  17;
  cost[17,16,24] =  194;
  cost[17,17,24] =  0;
  cost[17,18,24] =  182;
  cost[17,19,24] =  7;
  cost[17,20,24] =  108;
  cost[17,21,24] =  241;
  cost[18,0,24] =  352;
  cost[18,1,24] =  366;
  cost[18,2,24] =  400;
  cost[18,3,24] =  103;
  cost[18,4,24] =  152;
  cost[18,5,24] =  100;
  cost[18,6,24] =  467;
  cost[18,7,24] =  426;
  cost[18,8,24] =  17;
  cost[18,9,24] =  305;
  cost[18,10,24] =  346;
  cost[18,11,24] =  431;
  cost[18,12,24] =  226;
  cost[18,13,24] =  270;
  cost[18,14,24] =  277;
  cost[18,15,24] =  399;
  cost[18,16,24] =  129;
  cost[18,17,24] =  182;
  cost[18,18,24] =  0;
  cost[18,19,24] =  379;
  cost[18,20,24] =  162;
  cost[18,21,24] =  9;
  cost[19,0,24] =  391;
  cost[19,1,24] =  240;
  cost[19,2,24] =  20;
  cost[19,3,24] =  32;
  cost[19,4,24] =  85;
  cost[19,5,24] =  372;
  cost[19,6,24] =  97;
  cost[19,7,24] =  264;
  cost[19,8,24] =  9;
  cost[19,9,24] =  54;
  cost[19,10,24] =  452;
  cost[19,11,24] =  180;
  cost[19,12,24] =  163;
  cost[19,13,24] =  405;
  cost[19,14,24] =  342;
  cost[19,15,24] =  86;
  cost[19,16,24] =  15;
  cost[19,17,24] =  7;
  cost[19,18,24] =  379;
  cost[19,19,24] =  0;
  cost[19,20,24] =  177;
  cost[19,21,24] =  257;
  cost[20,0,24] =  18;
  cost[20,1,24] =  38;
  cost[20,2,24] =  298;
  cost[20,3,24] =  183;
  cost[20,4,24] =  142;
  cost[20,5,24] =  119;
  cost[20,6,24] =  258;
  cost[20,7,24] =  463;
  cost[20,8,24] =  48;
  cost[20,9,24] =  40;
  cost[20,10,24] =  448;
  cost[20,11,24] =  410;
  cost[20,12,24] =  374;
  cost[20,13,24] =  227;
  cost[20,14,24] =  351;
  cost[20,15,24] =  195;
  cost[20,16,24] =  358;
  cost[20,17,24] =  108;
  cost[20,18,24] =  162;
  cost[20,19,24] =  177;
  cost[20,20,24] =  0;
  cost[20,21,24] =  303;
  cost[21,0,24] =  239;
  cost[21,1,24] =  450;
  cost[21,2,24] =  189;
  cost[21,3,24] =  376;
  cost[21,4,24] =  310;
  cost[21,5,24] =  157;
  cost[21,6,24] =  305;
  cost[21,7,24] =  100;
  cost[21,8,24] =  115;
  cost[21,9,24] =  164;
  cost[21,10,24] =  93;
  cost[21,11,24] =  109;
  cost[21,12,24] =  47;
  cost[21,13,24] =  235;
  cost[21,14,24] =  91;
  cost[21,15,24] =  236;
  cost[21,16,24] =  19;
  cost[21,17,24] =  241;
  cost[21,18,24] =  9;
  cost[21,19,24] =  257;
  cost[21,20,24] =  303;
  cost[21,21,24] =  0;
  cost[0,0,25] =  0;
  cost[0,1,25] =  171;
  cost[0,2,25] =  142;
  cost[0,3,25] =  60;
  cost[0,4,25] =  219;
  cost[0,5,25] =  159;
  cost[0,6,25] =  459;
  cost[0,7,25] =  305;
  cost[0,8,25] =  355;
  cost[0,9,25] =  212;
  cost[0,10,25] =  94;
  cost[0,11,25] =  65;
  cost[0,12,25] =  341;
  cost[0,13,25] =  109;
  cost[0,14,25] =  424;
  cost[0,15,25] =  361;
  cost[0,16,25] =  172;
  cost[0,17,25] =  122;
  cost[0,18,25] =  369;
  cost[0,19,25] =  281;
  cost[0,20,25] =  363;
  cost[0,21,25] =  152;
  cost[1,0,25] =  171;
  cost[1,1,25] =  0;
  cost[1,2,25] =  42;
  cost[1,3,25] =  161;
  cost[1,4,25] =  307;
  cost[1,5,25] =  220;
  cost[1,6,25] =  419;
  cost[1,7,25] =  219;
  cost[1,8,25] =  39;
  cost[1,9,25] =  470;
  cost[1,10,25] =  473;
  cost[1,11,25] =  211;
  cost[1,12,25] =  129;
  cost[1,13,25] =  49;
  cost[1,14,25] =  430;
  cost[1,15,25] =  288;
  cost[1,16,25] =  24;
  cost[1,17,25] =  252;
  cost[1,18,25] =  160;
  cost[1,19,25] =  237;
  cost[1,20,25] =  346;
  cost[1,21,25] =  226;
  cost[2,0,25] =  142;
  cost[2,1,25] =  42;
  cost[2,2,25] =  0;
  cost[2,3,25] =  456;
  cost[2,4,25] =  166;
  cost[2,5,25] =  456;
  cost[2,6,25] =  145;
  cost[2,7,25] =  289;
  cost[2,8,25] =  341;
  cost[2,9,25] =  426;
  cost[2,10,25] =  169;
  cost[2,11,25] =  9;
  cost[2,12,25] =  119;
  cost[2,13,25] =  211;
  cost[2,14,25] =  171;
  cost[2,15,25] =  426;
  cost[2,16,25] =  432;
  cost[2,17,25] =  107;
  cost[2,18,25] =  162;
  cost[2,19,25] =  472;
  cost[2,20,25] =  93;
  cost[2,21,25] =  151;
  cost[3,0,25] =  60;
  cost[3,1,25] =  161;
  cost[3,2,25] =  456;
  cost[3,3,25] =  0;
  cost[3,4,25] =  222;
  cost[3,5,25] =  200;
  cost[3,6,25] =  145;
  cost[3,7,25] =  27;
  cost[3,8,25] =  225;
  cost[3,9,25] =  397;
  cost[3,10,25] =  187;
  cost[3,11,25] =  462;
  cost[3,12,25] =  260;
  cost[3,13,25] =  413;
  cost[3,14,25] =  73;
  cost[3,15,25] =  233;
  cost[3,16,25] =  96;
  cost[3,17,25] =  45;
  cost[3,18,25] =  378;
  cost[3,19,25] =  385;
  cost[3,20,25] =  387;
  cost[3,21,25] =  320;
  cost[4,0,25] =  219;
  cost[4,1,25] =  307;
  cost[4,2,25] =  166;
  cost[4,3,25] =  222;
  cost[4,4,25] =  0;
  cost[4,5,25] =  397;
  cost[4,6,25] =  439;
  cost[4,7,25] =  282;
  cost[4,8,25] =  84;
  cost[4,9,25] =  382;
  cost[4,10,25] =  230;
  cost[4,11,25] =  191;
  cost[4,12,25] =  60;
  cost[4,13,25] =  218;
  cost[4,14,25] =  285;
  cost[4,15,25] =  212;
  cost[4,16,25] =  417;
  cost[4,17,25] =  23;
  cost[4,18,25] =  413;
  cost[4,19,25] =  79;
  cost[4,20,25] =  51;
  cost[4,21,25] =  154;
  cost[5,0,25] =  159;
  cost[5,1,25] =  220;
  cost[5,2,25] =  456;
  cost[5,3,25] =  200;
  cost[5,4,25] =  397;
  cost[5,5,25] =  0;
  cost[5,6,25] =  239;
  cost[5,7,25] =  133;
  cost[5,8,25] =  253;
  cost[5,9,25] =  168;
  cost[5,10,25] =  207;
  cost[5,11,25] =  3;
  cost[5,12,25] =  264;
  cost[5,13,25] =  253;
  cost[5,14,25] =  381;
  cost[5,15,25] =  166;
  cost[5,16,25] =  156;
  cost[5,17,25] =  218;
  cost[5,18,25] =  236;
  cost[5,19,25] =  69;
  cost[5,20,25] =  174;
  cost[5,21,25] =  34;
  cost[6,0,25] =  459;
  cost[6,1,25] =  419;
  cost[6,2,25] =  145;
  cost[6,3,25] =  145;
  cost[6,4,25] =  439;
  cost[6,5,25] =  239;
  cost[6,6,25] =  0;
  cost[6,7,25] =  72;
  cost[6,8,25] =  264;
  cost[6,9,25] =  345;
  cost[6,10,25] =  133;
  cost[6,11,25] =  483;
  cost[6,12,25] =  146;
  cost[6,13,25] =  346;
  cost[6,14,25] =  417;
  cost[6,15,25] =  170;
  cost[6,16,25] =  275;
  cost[6,17,25] =  12;
  cost[6,18,25] =  222;
  cost[6,19,25] =  430;
  cost[6,20,25] =  6;
  cost[6,21,25] =  461;
  cost[7,0,25] =  305;
  cost[7,1,25] =  219;
  cost[7,2,25] =  289;
  cost[7,3,25] =  27;
  cost[7,4,25] =  282;
  cost[7,5,25] =  133;
  cost[7,6,25] =  72;
  cost[7,7,25] =  0;
  cost[7,8,25] =  260;
  cost[7,9,25] =  146;
  cost[7,10,25] =  287;
  cost[7,11,25] =  263;
  cost[7,12,25] =  410;
  cost[7,13,25] =  56;
  cost[7,14,25] =  160;
  cost[7,15,25] =  92;
  cost[7,16,25] =  212;
  cost[7,17,25] =  378;
  cost[7,18,25] =  329;
  cost[7,19,25] =  282;
  cost[7,20,25] =  68;
  cost[7,21,25] =  363;
  cost[8,0,25] =  355;
  cost[8,1,25] =  39;
  cost[8,2,25] =  341;
  cost[8,3,25] =  225;
  cost[8,4,25] =  84;
  cost[8,5,25] =  253;
  cost[8,6,25] =  264;
  cost[8,7,25] =  260;
  cost[8,8,25] =  0;
  cost[8,9,25] =  141;
  cost[8,10,25] =  144;
  cost[8,11,25] =  297;
  cost[8,12,25] =  275;
  cost[8,13,25] =  144;
  cost[8,14,25] =  444;
  cost[8,15,25] =  138;
  cost[8,16,25] =  77;
  cost[8,17,25] =  131;
  cost[8,18,25] =  413;
  cost[8,19,25] =  90;
  cost[8,20,25] =  354;
  cost[8,21,25] =  360;
  cost[9,0,25] =  212;
  cost[9,1,25] =  470;
  cost[9,2,25] =  426;
  cost[9,3,25] =  397;
  cost[9,4,25] =  382;
  cost[9,5,25] =  168;
  cost[9,6,25] =  345;
  cost[9,7,25] =  146;
  cost[9,8,25] =  141;
  cost[9,9,25] =  0;
  cost[9,10,25] =  331;
  cost[9,11,25] =  440;
  cost[9,12,25] =  356;
  cost[9,13,25] =  477;
  cost[9,14,25] =  243;
  cost[9,15,25] =  136;
  cost[9,16,25] =  404;
  cost[9,17,25] =  299;
  cost[9,18,25] =  296;
  cost[9,19,25] =  13;
  cost[9,20,25] =  28;
  cost[9,21,25] =  191;
  cost[10,0,25] =  94;
  cost[10,1,25] =  473;
  cost[10,2,25] =  169;
  cost[10,3,25] =  187;
  cost[10,4,25] =  230;
  cost[10,5,25] =  207;
  cost[10,6,25] =  133;
  cost[10,7,25] =  287;
  cost[10,8,25] =  144;
  cost[10,9,25] =  331;
  cost[10,10,25] =  0;
  cost[10,11,25] =  310;
  cost[10,12,25] =  260;
  cost[10,13,25] =  222;
  cost[10,14,25] =  262;
  cost[10,15,25] =  402;
  cost[10,16,25] =  367;
  cost[10,17,25] =  76;
  cost[10,18,25] =  194;
  cost[10,19,25] =  28;
  cost[10,20,25] =  37;
  cost[10,21,25] =  332;
  cost[11,0,25] =  65;
  cost[11,1,25] =  211;
  cost[11,2,25] =  9;
  cost[11,3,25] =  462;
  cost[11,4,25] =  191;
  cost[11,5,25] =  3;
  cost[11,6,25] =  483;
  cost[11,7,25] =  263;
  cost[11,8,25] =  297;
  cost[11,9,25] =  440;
  cost[11,10,25] =  310;
  cost[11,11,25] =  0;
  cost[11,12,25] =  169;
  cost[11,13,25] =  262;
  cost[11,14,25] =  196;
  cost[11,15,25] =  39;
  cost[11,16,25] =  138;
  cost[11,17,25] =  293;
  cost[11,18,25] =  371;
  cost[11,19,25] =  95;
  cost[11,20,25] =  166;
  cost[11,21,25] =  364;
  cost[12,0,25] =  341;
  cost[12,1,25] =  129;
  cost[12,2,25] =  119;
  cost[12,3,25] =  260;
  cost[12,4,25] =  60;
  cost[12,5,25] =  264;
  cost[12,6,25] =  146;
  cost[12,7,25] =  410;
  cost[12,8,25] =  275;
  cost[12,9,25] =  356;
  cost[12,10,25] =  260;
  cost[12,11,25] =  169;
  cost[12,12,25] =  0;
  cost[12,13,25] =  302;
  cost[12,14,25] =  285;
  cost[12,15,25] =  154;
  cost[12,16,25] =  115;
  cost[12,17,25] =  299;
  cost[12,18,25] =  182;
  cost[12,19,25] =  307;
  cost[12,20,25] =  158;
  cost[12,21,25] =  9;
  cost[13,0,25] =  109;
  cost[13,1,25] =  49;
  cost[13,2,25] =  211;
  cost[13,3,25] =  413;
  cost[13,4,25] =  218;
  cost[13,5,25] =  253;
  cost[13,6,25] =  346;
  cost[13,7,25] =  56;
  cost[13,8,25] =  144;
  cost[13,9,25] =  477;
  cost[13,10,25] =  222;
  cost[13,11,25] =  262;
  cost[13,12,25] =  302;
  cost[13,13,25] =  0;
  cost[13,14,25] =  381;
  cost[13,15,25] =  272;
  cost[13,16,25] =  2;
  cost[13,17,25] =  264;
  cost[13,18,25] =  349;
  cost[13,19,25] =  196;
  cost[13,20,25] =  293;
  cost[13,21,25] =  386;
  cost[14,0,25] =  424;
  cost[14,1,25] =  430;
  cost[14,2,25] =  171;
  cost[14,3,25] =  73;
  cost[14,4,25] =  285;
  cost[14,5,25] =  381;
  cost[14,6,25] =  417;
  cost[14,7,25] =  160;
  cost[14,8,25] =  444;
  cost[14,9,25] =  243;
  cost[14,10,25] =  262;
  cost[14,11,25] =  196;
  cost[14,12,25] =  285;
  cost[14,13,25] =  381;
  cost[14,14,25] =  0;
  cost[14,15,25] =  399;
  cost[14,16,25] =  71;
  cost[14,17,25] =  308;
  cost[14,18,25] =  111;
  cost[14,19,25] =  111;
  cost[14,20,25] =  447;
  cost[14,21,25] =  404;
  cost[15,0,25] =  361;
  cost[15,1,25] =  288;
  cost[15,2,25] =  426;
  cost[15,3,25] =  233;
  cost[15,4,25] =  212;
  cost[15,5,25] =  166;
  cost[15,6,25] =  170;
  cost[15,7,25] =  92;
  cost[15,8,25] =  138;
  cost[15,9,25] =  136;
  cost[15,10,25] =  402;
  cost[15,11,25] =  39;
  cost[15,12,25] =  154;
  cost[15,13,25] =  272;
  cost[15,14,25] =  399;
  cost[15,15,25] =  0;
  cost[15,16,25] =  58;
  cost[15,17,25] =  86;
  cost[15,18,25] =  363;
  cost[15,19,25] =  396;
  cost[15,20,25] =  389;
  cost[15,21,25] =  164;
  cost[16,0,25] =  172;
  cost[16,1,25] =  24;
  cost[16,2,25] =  432;
  cost[16,3,25] =  96;
  cost[16,4,25] =  417;
  cost[16,5,25] =  156;
  cost[16,6,25] =  275;
  cost[16,7,25] =  212;
  cost[16,8,25] =  77;
  cost[16,9,25] =  404;
  cost[16,10,25] =  367;
  cost[16,11,25] =  138;
  cost[16,12,25] =  115;
  cost[16,13,25] =  2;
  cost[16,14,25] =  71;
  cost[16,15,25] =  58;
  cost[16,16,25] =  0;
  cost[16,17,25] =  20;
  cost[16,18,25] =  463;
  cost[16,19,25] =  250;
  cost[16,20,25] =  327;
  cost[16,21,25] =  138;
  cost[17,0,25] =  122;
  cost[17,1,25] =  252;
  cost[17,2,25] =  107;
  cost[17,3,25] =  45;
  cost[17,4,25] =  23;
  cost[17,5,25] =  218;
  cost[17,6,25] =  12;
  cost[17,7,25] =  378;
  cost[17,8,25] =  131;
  cost[17,9,25] =  299;
  cost[17,10,25] =  76;
  cost[17,11,25] =  293;
  cost[17,12,25] =  299;
  cost[17,13,25] =  264;
  cost[17,14,25] =  308;
  cost[17,15,25] =  86;
  cost[17,16,25] =  20;
  cost[17,17,25] =  0;
  cost[17,18,25] =  411;
  cost[17,19,25] =  35;
  cost[17,20,25] =  48;
  cost[17,21,25] =  413;
  cost[18,0,25] =  369;
  cost[18,1,25] =  160;
  cost[18,2,25] =  162;
  cost[18,3,25] =  378;
  cost[18,4,25] =  413;
  cost[18,5,25] =  236;
  cost[18,6,25] =  222;
  cost[18,7,25] =  329;
  cost[18,8,25] =  413;
  cost[18,9,25] =  296;
  cost[18,10,25] =  194;
  cost[18,11,25] =  371;
  cost[18,12,25] =  182;
  cost[18,13,25] =  349;
  cost[18,14,25] =  111;
  cost[18,15,25] =  363;
  cost[18,16,25] =  463;
  cost[18,17,25] =  411;
  cost[18,18,25] =  0;
  cost[18,19,25] =  397;
  cost[18,20,25] =  126;
  cost[18,21,25] =  109;
  cost[19,0,25] =  281;
  cost[19,1,25] =  237;
  cost[19,2,25] =  472;
  cost[19,3,25] =  385;
  cost[19,4,25] =  79;
  cost[19,5,25] =  69;
  cost[19,6,25] =  430;
  cost[19,7,25] =  282;
  cost[19,8,25] =  90;
  cost[19,9,25] =  13;
  cost[19,10,25] =  28;
  cost[19,11,25] =  95;
  cost[19,12,25] =  307;
  cost[19,13,25] =  196;
  cost[19,14,25] =  111;
  cost[19,15,25] =  396;
  cost[19,16,25] =  250;
  cost[19,17,25] =  35;
  cost[19,18,25] =  397;
  cost[19,19,25] =  0;
  cost[19,20,25] =  172;
  cost[19,21,25] =  24;
  cost[20,0,25] =  363;
  cost[20,1,25] =  346;
  cost[20,2,25] =  93;
  cost[20,3,25] =  387;
  cost[20,4,25] =  51;
  cost[20,5,25] =  174;
  cost[20,6,25] =  6;
  cost[20,7,25] =  68;
  cost[20,8,25] =  354;
  cost[20,9,25] =  28;
  cost[20,10,25] =  37;
  cost[20,11,25] =  166;
  cost[20,12,25] =  158;
  cost[20,13,25] =  293;
  cost[20,14,25] =  447;
  cost[20,15,25] =  389;
  cost[20,16,25] =  327;
  cost[20,17,25] =  48;
  cost[20,18,25] =  126;
  cost[20,19,25] =  172;
  cost[20,20,25] =  0;
  cost[20,21,25] =  480;
  cost[21,0,25] =  152;
  cost[21,1,25] =  226;
  cost[21,2,25] =  151;
  cost[21,3,25] =  320;
  cost[21,4,25] =  154;
  cost[21,5,25] =  34;
  cost[21,6,25] =  461;
  cost[21,7,25] =  363;
  cost[21,8,25] =  360;
  cost[21,9,25] =  191;
  cost[21,10,25] =  332;
  cost[21,11,25] =  364;
  cost[21,12,25] =  9;
  cost[21,13,25] =  386;
  cost[21,14,25] =  404;
  cost[21,15,25] =  164;
  cost[21,16,25] =  138;
  cost[21,17,25] =  413;
  cost[21,18,25] =  109;
  cost[21,19,25] =  24;
  cost[21,20,25] =  480;
  cost[21,21,25] =  0;
  cost[0,0,26] =  0;
  cost[0,1,26] =  443;
  cost[0,2,26] =  56;
  cost[0,3,26] =  481;
  cost[0,4,26] =  17;
  cost[0,5,26] =  142;
  cost[0,6,26] =  360;
  cost[0,7,26] =  414;
  cost[0,8,26] =  47;
  cost[0,9,26] =  40;
  cost[0,10,26] =  481;
  cost[0,11,26] =  68;
  cost[0,12,26] =  20;
  cost[0,13,26] =  248;
  cost[0,14,26] =  395;
  cost[0,15,26] =  158;
  cost[0,16,26] =  23;
  cost[0,17,26] =  323;
  cost[0,18,26] =  194;
  cost[0,19,26] =  71;
  cost[0,20,26] =  252;
  cost[0,21,26] =  10;
  cost[1,0,26] =  443;
  cost[1,1,26] =  0;
  cost[1,2,26] =  379;
  cost[1,3,26] =  119;
  cost[1,4,26] =  284;
  cost[1,5,26] =  67;
  cost[1,6,26] =  143;
  cost[1,7,26] =  172;
  cost[1,8,26] =  64;
  cost[1,9,26] =  279;
  cost[1,10,26] =  170;
  cost[1,11,26] =  23;
  cost[1,12,26] =  335;
  cost[1,13,26] =  167;
  cost[1,14,26] =  41;
  cost[1,15,26] =  478;
  cost[1,16,26] =  44;
  cost[1,17,26] =  455;
  cost[1,18,26] =  42;
  cost[1,19,26] =  84;
  cost[1,20,26] =  453;
  cost[1,21,26] =  110;
  cost[2,0,26] =  56;
  cost[2,1,26] =  379;
  cost[2,2,26] =  0;
  cost[2,3,26] =  218;
  cost[2,4,26] =  22;
  cost[2,5,26] =  264;
  cost[2,6,26] =  241;
  cost[2,7,26] =  345;
  cost[2,8,26] =  458;
  cost[2,9,26] =  313;
  cost[2,10,26] =  114;
  cost[2,11,26] =  469;
  cost[2,12,26] =  298;
  cost[2,13,26] =  10;
  cost[2,14,26] =  104;
  cost[2,15,26] =  99;
  cost[2,16,26] =  77;
  cost[2,17,26] =  248;
  cost[2,18,26] =  271;
  cost[2,19,26] =  141;
  cost[2,20,26] =  43;
  cost[2,21,26] =  442;
  cost[3,0,26] =  481;
  cost[3,1,26] =  119;
  cost[3,2,26] =  218;
  cost[3,3,26] =  0;
  cost[3,4,26] =  379;
  cost[3,5,26] =  126;
  cost[3,6,26] =  206;
  cost[3,7,26] =  374;
  cost[3,8,26] =  170;
  cost[3,9,26] =  178;
  cost[3,10,26] =  416;
  cost[3,11,26] =  255;
  cost[3,12,26] =  148;
  cost[3,13,26] =  43;
  cost[3,14,26] =  361;
  cost[3,15,26] =  366;
  cost[3,16,26] =  66;
  cost[3,17,26] =  141;
  cost[3,18,26] =  124;
  cost[3,19,26] =  412;
  cost[3,20,26] =  116;
  cost[3,21,26] =  437;
  cost[4,0,26] =  17;
  cost[4,1,26] =  284;
  cost[4,2,26] =  22;
  cost[4,3,26] =  379;
  cost[4,4,26] =  0;
  cost[4,5,26] =  101;
  cost[4,6,26] =  252;
  cost[4,7,26] =  52;
  cost[4,8,26] =  206;
  cost[4,9,26] =  352;
  cost[4,10,26] =  130;
  cost[4,11,26] =  454;
  cost[4,12,26] =  140;
  cost[4,13,26] =  272;
  cost[4,14,26] =  14;
  cost[4,15,26] =  98;
  cost[4,16,26] =  437;
  cost[4,17,26] =  393;
  cost[4,18,26] =  225;
  cost[4,19,26] =  159;
  cost[4,20,26] =  283;
  cost[4,21,26] =  395;
  cost[5,0,26] =  142;
  cost[5,1,26] =  67;
  cost[5,2,26] =  264;
  cost[5,3,26] =  126;
  cost[5,4,26] =  101;
  cost[5,5,26] =  0;
  cost[5,6,26] =  216;
  cost[5,7,26] =  166;
  cost[5,8,26] =  1;
  cost[5,9,26] =  260;
  cost[5,10,26] =  44;
  cost[5,11,26] =  367;
  cost[5,12,26] =  326;
  cost[5,13,26] =  186;
  cost[5,14,26] =  8;
  cost[5,15,26] =  254;
  cost[5,16,26] =  302;
  cost[5,17,26] =  445;
  cost[5,18,26] =  297;
  cost[5,19,26] =  404;
  cost[5,20,26] =  214;
  cost[5,21,26] =  350;
  cost[6,0,26] =  360;
  cost[6,1,26] =  143;
  cost[6,2,26] =  241;
  cost[6,3,26] =  206;
  cost[6,4,26] =  252;
  cost[6,5,26] =  216;
  cost[6,6,26] =  0;
  cost[6,7,26] =  83;
  cost[6,8,26] =  481;
  cost[6,9,26] =  96;
  cost[6,10,26] =  223;
  cost[6,11,26] =  269;
  cost[6,12,26] =  111;
  cost[6,13,26] =  321;
  cost[6,14,26] =  222;
  cost[6,15,26] =  21;
  cost[6,16,26] =  62;
  cost[6,17,26] =  382;
  cost[6,18,26] =  305;
  cost[6,19,26] =  458;
  cost[6,20,26] =  236;
  cost[6,21,26] =  37;
  cost[7,0,26] =  414;
  cost[7,1,26] =  172;
  cost[7,2,26] =  345;
  cost[7,3,26] =  374;
  cost[7,4,26] =  52;
  cost[7,5,26] =  166;
  cost[7,6,26] =  83;
  cost[7,7,26] =  0;
  cost[7,8,26] =  238;
  cost[7,9,26] =  297;
  cost[7,10,26] =  185;
  cost[7,11,26] =  122;
  cost[7,12,26] =  140;
  cost[7,13,26] =  371;
  cost[7,14,26] =  130;
  cost[7,15,26] =  395;
  cost[7,16,26] =  190;
  cost[7,17,26] =  92;
  cost[7,18,26] =  209;
  cost[7,19,26] =  110;
  cost[7,20,26] =  306;
  cost[7,21,26] =  75;
  cost[8,0,26] =  47;
  cost[8,1,26] =  64;
  cost[8,2,26] =  458;
  cost[8,3,26] =  170;
  cost[8,4,26] =  206;
  cost[8,5,26] =  1;
  cost[8,6,26] =  481;
  cost[8,7,26] =  238;
  cost[8,8,26] =  0;
  cost[8,9,26] =  390;
  cost[8,10,26] =  72;
  cost[8,11,26] =  333;
  cost[8,12,26] =  129;
  cost[8,13,26] =  341;
  cost[8,14,26] =  445;
  cost[8,15,26] =  451;
  cost[8,16,26] =  80;
  cost[8,17,26] =  466;
  cost[8,18,26] =  30;
  cost[8,19,26] =  462;
  cost[8,20,26] =  287;
  cost[8,21,26] =  4;
  cost[9,0,26] =  40;
  cost[9,1,26] =  279;
  cost[9,2,26] =  313;
  cost[9,3,26] =  178;
  cost[9,4,26] =  352;
  cost[9,5,26] =  260;
  cost[9,6,26] =  96;
  cost[9,7,26] =  297;
  cost[9,8,26] =  390;
  cost[9,9,26] =  0;
  cost[9,10,26] =  325;
  cost[9,11,26] =  146;
  cost[9,12,26] =  453;
  cost[9,13,26] =  139;
  cost[9,14,26] =  331;
  cost[9,15,26] =  91;
  cost[9,16,26] =  279;
  cost[9,17,26] =  219;
  cost[9,18,26] =  221;
  cost[9,19,26] =  191;
  cost[9,20,26] =  409;
  cost[9,21,26] =  313;
  cost[10,0,26] =  481;
  cost[10,1,26] =  170;
  cost[10,2,26] =  114;
  cost[10,3,26] =  416;
  cost[10,4,26] =  130;
  cost[10,5,26] =  44;
  cost[10,6,26] =  223;
  cost[10,7,26] =  185;
  cost[10,8,26] =  72;
  cost[10,9,26] =  325;
  cost[10,10,26] =  0;
  cost[10,11,26] =  36;
  cost[10,12,26] =  136;
  cost[10,13,26] =  475;
  cost[10,14,26] =  273;
  cost[10,15,26] =  42;
  cost[10,16,26] =  64;
  cost[10,17,26] =  123;
  cost[10,18,26] =  172;
  cost[10,19,26] =  406;
  cost[10,20,26] =  84;
  cost[10,21,26] =  139;
  cost[11,0,26] =  68;
  cost[11,1,26] =  23;
  cost[11,2,26] =  469;
  cost[11,3,26] =  255;
  cost[11,4,26] =  454;
  cost[11,5,26] =  367;
  cost[11,6,26] =  269;
  cost[11,7,26] =  122;
  cost[11,8,26] =  333;
  cost[11,9,26] =  146;
  cost[11,10,26] =  36;
  cost[11,11,26] =  0;
  cost[11,12,26] =  66;
  cost[11,13,26] =  169;
  cost[11,14,26] =  466;
  cost[11,15,26] =  353;
  cost[11,16,26] =  174;
  cost[11,17,26] =  197;
  cost[11,18,26] =  194;
  cost[11,19,26] =  321;
  cost[11,20,26] =  166;
  cost[11,21,26] =  333;
  cost[12,0,26] =  20;
  cost[12,1,26] =  335;
  cost[12,2,26] =  298;
  cost[12,3,26] =  148;
  cost[12,4,26] =  140;
  cost[12,5,26] =  326;
  cost[12,6,26] =  111;
  cost[12,7,26] =  140;
  cost[12,8,26] =  129;
  cost[12,9,26] =  453;
  cost[12,10,26] =  136;
  cost[12,11,26] =  66;
  cost[12,12,26] =  0;
  cost[12,13,26] =  257;
  cost[12,14,26] =  129;
  cost[12,15,26] =  388;
  cost[12,16,26] =  478;
  cost[12,17,26] =  320;
  cost[12,18,26] =  314;
  cost[12,19,26] =  308;
  cost[12,20,26] =  236;
  cost[12,21,26] =  350;
  cost[13,0,26] =  248;
  cost[13,1,26] =  167;
  cost[13,2,26] =  10;
  cost[13,3,26] =  43;
  cost[13,4,26] =  272;
  cost[13,5,26] =  186;
  cost[13,6,26] =  321;
  cost[13,7,26] =  371;
  cost[13,8,26] =  341;
  cost[13,9,26] =  139;
  cost[13,10,26] =  475;
  cost[13,11,26] =  169;
  cost[13,12,26] =  257;
  cost[13,13,26] =  0;
  cost[13,14,26] =  228;
  cost[13,15,26] =  139;
  cost[13,16,26] =  2;
  cost[13,17,26] =  293;
  cost[13,18,26] =  262;
  cost[13,19,26] =  175;
  cost[13,20,26] =  216;
  cost[13,21,26] =  347;
  cost[14,0,26] =  395;
  cost[14,1,26] =  41;
  cost[14,2,26] =  104;
  cost[14,3,26] =  361;
  cost[14,4,26] =  14;
  cost[14,5,26] =  8;
  cost[14,6,26] =  222;
  cost[14,7,26] =  130;
  cost[14,8,26] =  445;
  cost[14,9,26] =  331;
  cost[14,10,26] =  273;
  cost[14,11,26] =  466;
  cost[14,12,26] =  129;
  cost[14,13,26] =  228;
  cost[14,14,26] =  0;
  cost[14,15,26] =  219;
  cost[14,16,26] =  413;
  cost[14,17,26] =  0;
  cost[14,18,26] =  201;
  cost[14,19,26] =  283;
  cost[14,20,26] =  175;
  cost[14,21,26] =  398;
  cost[15,0,26] =  158;
  cost[15,1,26] =  478;
  cost[15,2,26] =  99;
  cost[15,3,26] =  366;
  cost[15,4,26] =  98;
  cost[15,5,26] =  254;
  cost[15,6,26] =  21;
  cost[15,7,26] =  395;
  cost[15,8,26] =  451;
  cost[15,9,26] =  91;
  cost[15,10,26] =  42;
  cost[15,11,26] =  353;
  cost[15,12,26] =  388;
  cost[15,13,26] =  139;
  cost[15,14,26] =  219;
  cost[15,15,26] =  0;
  cost[15,16,26] =  12;
  cost[15,17,26] =  80;
  cost[15,18,26] =  328;
  cost[15,19,26] =  181;
  cost[15,20,26] =  338;
  cost[15,21,26] =  457;
  cost[16,0,26] =  23;
  cost[16,1,26] =  44;
  cost[16,2,26] =  77;
  cost[16,3,26] =  66;
  cost[16,4,26] =  437;
  cost[16,5,26] =  302;
  cost[16,6,26] =  62;
  cost[16,7,26] =  190;
  cost[16,8,26] =  80;
  cost[16,9,26] =  279;
  cost[16,10,26] =  64;
  cost[16,11,26] =  174;
  cost[16,12,26] =  478;
  cost[16,13,26] =  2;
  cost[16,14,26] =  413;
  cost[16,15,26] =  12;
  cost[16,16,26] =  0;
  cost[16,17,26] =  332;
  cost[16,18,26] =  294;
  cost[16,19,26] =  400;
  cost[16,20,26] =  156;
  cost[16,21,26] =  47;
  cost[17,0,26] =  323;
  cost[17,1,26] =  455;
  cost[17,2,26] =  248;
  cost[17,3,26] =  141;
  cost[17,4,26] =  393;
  cost[17,5,26] =  445;
  cost[17,6,26] =  382;
  cost[17,7,26] =  92;
  cost[17,8,26] =  466;
  cost[17,9,26] =  219;
  cost[17,10,26] =  123;
  cost[17,11,26] =  197;
  cost[17,12,26] =  320;
  cost[17,13,26] =  293;
  cost[17,14,26] =  0;
  cost[17,15,26] =  80;
  cost[17,16,26] =  332;
  cost[17,17,26] =  0;
  cost[17,18,26] =  117;
  cost[17,19,26] =  276;
  cost[17,20,26] =  406;
  cost[17,21,26] =  120;
  cost[18,0,26] =  194;
  cost[18,1,26] =  42;
  cost[18,2,26] =  271;
  cost[18,3,26] =  124;
  cost[18,4,26] =  225;
  cost[18,5,26] =  297;
  cost[18,6,26] =  305;
  cost[18,7,26] =  209;
  cost[18,8,26] =  30;
  cost[18,9,26] =  221;
  cost[18,10,26] =  172;
  cost[18,11,26] =  194;
  cost[18,12,26] =  314;
  cost[18,13,26] =  262;
  cost[18,14,26] =  201;
  cost[18,15,26] =  328;
  cost[18,16,26] =  294;
  cost[18,17,26] =  117;
  cost[18,18,26] =  0;
  cost[18,19,26] =  185;
  cost[18,20,26] =  295;
  cost[18,21,26] =  301;
  cost[19,0,26] =  71;
  cost[19,1,26] =  84;
  cost[19,2,26] =  141;
  cost[19,3,26] =  412;
  cost[19,4,26] =  159;
  cost[19,5,26] =  404;
  cost[19,6,26] =  458;
  cost[19,7,26] =  110;
  cost[19,8,26] =  462;
  cost[19,9,26] =  191;
  cost[19,10,26] =  406;
  cost[19,11,26] =  321;
  cost[19,12,26] =  308;
  cost[19,13,26] =  175;
  cost[19,14,26] =  283;
  cost[19,15,26] =  181;
  cost[19,16,26] =  400;
  cost[19,17,26] =  276;
  cost[19,18,26] =  185;
  cost[19,19,26] =  0;
  cost[19,20,26] =  125;
  cost[19,21,26] =  37;
  cost[20,0,26] =  252;
  cost[20,1,26] =  453;
  cost[20,2,26] =  43;
  cost[20,3,26] =  116;
  cost[20,4,26] =  283;
  cost[20,5,26] =  214;
  cost[20,6,26] =  236;
  cost[20,7,26] =  306;
  cost[20,8,26] =  287;
  cost[20,9,26] =  409;
  cost[20,10,26] =  84;
  cost[20,11,26] =  166;
  cost[20,12,26] =  236;
  cost[20,13,26] =  216;
  cost[20,14,26] =  175;
  cost[20,15,26] =  338;
  cost[20,16,26] =  156;
  cost[20,17,26] =  406;
  cost[20,18,26] =  295;
  cost[20,19,26] =  125;
  cost[20,20,26] =  0;
  cost[20,21,26] =  126;
  cost[21,0,26] =  10;
  cost[21,1,26] =  110;
  cost[21,2,26] =  442;
  cost[21,3,26] =  437;
  cost[21,4,26] =  395;
  cost[21,5,26] =  350;
  cost[21,6,26] =  37;
  cost[21,7,26] =  75;
  cost[21,8,26] =  4;
  cost[21,9,26] =  313;
  cost[21,10,26] =  139;
  cost[21,11,26] =  333;
  cost[21,12,26] =  350;
  cost[21,13,26] =  347;
  cost[21,14,26] =  398;
  cost[21,15,26] =  457;
  cost[21,16,26] =  47;
  cost[21,17,26] =  120;
  cost[21,18,26] =  301;
  cost[21,19,26] =  37;
  cost[21,20,26] =  126;
  cost[21,21,26] =  0;
  cost[0,0,27] =  0;
  cost[0,1,27] =  301;
  cost[0,2,27] =  153;
  cost[0,3,27] =  255;
  cost[0,4,27] =  314;
  cost[0,5,27] =  234;
  cost[0,6,27] =  100;
  cost[0,7,27] =  11;
  cost[0,8,27] =  88;
  cost[0,9,27] =  73;
  cost[0,10,27] =  97;
  cost[0,11,27] =  420;
  cost[0,12,27] =  368;
  cost[0,13,27] =  13;
  cost[0,14,27] =  93;
  cost[0,15,27] =  415;
  cost[0,16,27] =  280;
  cost[0,17,27] =  210;
  cost[0,18,27] =  207;
  cost[0,19,27] =  203;
  cost[0,20,27] =  331;
  cost[0,21,27] =  293;
  cost[1,0,27] =  301;
  cost[1,1,27] =  0;
  cost[1,2,27] =  142;
  cost[1,3,27] =  111;
  cost[1,4,27] =  436;
  cost[1,5,27] =  268;
  cost[1,6,27] =  148;
  cost[1,7,27] =  415;
  cost[1,8,27] =  394;
  cost[1,9,27] =  387;
  cost[1,10,27] =  192;
  cost[1,11,27] =  212;
  cost[1,12,27] =  57;
  cost[1,13,27] =  448;
  cost[1,14,27] =  42;
  cost[1,15,27] =  291;
  cost[1,16,27] =  64;
  cost[1,17,27] =  53;
  cost[1,18,27] =  379;
  cost[1,19,27] =  138;
  cost[1,20,27] =  151;
  cost[1,21,27] =  315;
  cost[2,0,27] =  153;
  cost[2,1,27] =  142;
  cost[2,2,27] =  0;
  cost[2,3,27] =  165;
  cost[2,4,27] =  409;
  cost[2,5,27] =  438;
  cost[2,6,27] =  445;
  cost[2,7,27] =  136;
  cost[2,8,27] =  161;
  cost[2,9,27] =  164;
  cost[2,10,27] =  467;
  cost[2,11,27] =  455;
  cost[2,12,27] =  69;
  cost[2,13,27] =  125;
  cost[2,14,27] =  82;
  cost[2,15,27] =  22;
  cost[2,16,27] =  393;
  cost[2,17,27] =  231;
  cost[2,18,27] =  437;
  cost[2,19,27] =  304;
  cost[2,20,27] =  135;
  cost[2,21,27] =  145;
  cost[3,0,27] =  255;
  cost[3,1,27] =  111;
  cost[3,2,27] =  165;
  cost[3,3,27] =  0;
  cost[3,4,27] =  193;
  cost[3,5,27] =  110;
  cost[3,6,27] =  74;
  cost[3,7,27] =  0;
  cost[3,8,27] =  174;
  cost[3,9,27] =  128;
  cost[3,10,27] =  379;
  cost[3,11,27] =  312;
  cost[3,12,27] =  280;
  cost[3,13,27] =  211;
  cost[3,14,27] =  335;
  cost[3,15,27] =  445;
  cost[3,16,27] =  137;
  cost[3,17,27] =  289;
  cost[3,18,27] =  407;
  cost[3,19,27] =  273;
  cost[3,20,27] =  451;
  cost[3,21,27] =  88;
  cost[4,0,27] =  314;
  cost[4,1,27] =  436;
  cost[4,2,27] =  409;
  cost[4,3,27] =  193;
  cost[4,4,27] =  0;
  cost[4,5,27] =  422;
  cost[4,6,27] =  157;
  cost[4,7,27] =  382;
  cost[4,8,27] =  21;
  cost[4,9,27] =  180;
  cost[4,10,27] =  292;
  cost[4,11,27] =  253;
  cost[4,12,27] =  133;
  cost[4,13,27] =  112;
  cost[4,14,27] =  389;
  cost[4,15,27] =  279;
  cost[4,16,27] =  145;
  cost[4,17,27] =  98;
  cost[4,18,27] =  389;
  cost[4,19,27] =  220;
  cost[4,20,27] =  98;
  cost[4,21,27] =  80;
  cost[5,0,27] =  234;
  cost[5,1,27] =  268;
  cost[5,2,27] =  438;
  cost[5,3,27] =  110;
  cost[5,4,27] =  422;
  cost[5,5,27] =  0;
  cost[5,6,27] =  478;
  cost[5,7,27] =  393;
  cost[5,8,27] =  144;
  cost[5,9,27] =  205;
  cost[5,10,27] =  244;
  cost[5,11,27] =  106;
  cost[5,12,27] =  342;
  cost[5,13,27] =  49;
  cost[5,14,27] =  30;
  cost[5,15,27] =  132;
  cost[5,16,27] =  17;
  cost[5,17,27] =  118;
  cost[5,18,27] =  388;
  cost[5,19,27] =  439;
  cost[5,20,27] =  276;
  cost[5,21,27] =  287;
  cost[6,0,27] =  100;
  cost[6,1,27] =  148;
  cost[6,2,27] =  445;
  cost[6,3,27] =  74;
  cost[6,4,27] =  157;
  cost[6,5,27] =  478;
  cost[6,6,27] =  0;
  cost[6,7,27] =  456;
  cost[6,8,27] =  95;
  cost[6,9,27] =  231;
  cost[6,10,27] =  106;
  cost[6,11,27] =  208;
  cost[6,12,27] =  136;
  cost[6,13,27] =  385;
  cost[6,14,27] =  353;
  cost[6,15,27] =  234;
  cost[6,16,27] =  291;
  cost[6,17,27] =  89;
  cost[6,18,27] =  333;
  cost[6,19,27] =  372;
  cost[6,20,27] =  438;
  cost[6,21,27] =  327;
  cost[7,0,27] =  11;
  cost[7,1,27] =  415;
  cost[7,2,27] =  136;
  cost[7,3,27] =  0;
  cost[7,4,27] =  382;
  cost[7,5,27] =  393;
  cost[7,6,27] =  456;
  cost[7,7,27] =  0;
  cost[7,8,27] =  99;
  cost[7,9,27] =  49;
  cost[7,10,27] =  42;
  cost[7,11,27] =  205;
  cost[7,12,27] =  391;
  cost[7,13,27] =  92;
  cost[7,14,27] =  235;
  cost[7,15,27] =  39;
  cost[7,16,27] =  109;
  cost[7,17,27] =  354;
  cost[7,18,27] =  428;
  cost[7,19,27] =  64;
  cost[7,20,27] =  147;
  cost[7,21,27] =  232;
  cost[8,0,27] =  88;
  cost[8,1,27] =  394;
  cost[8,2,27] =  161;
  cost[8,3,27] =  174;
  cost[8,4,27] =  21;
  cost[8,5,27] =  144;
  cost[8,6,27] =  95;
  cost[8,7,27] =  99;
  cost[8,8,27] =  0;
  cost[8,9,27] =  119;
  cost[8,10,27] =  327;
  cost[8,11,27] =  273;
  cost[8,12,27] =  226;
  cost[8,13,27] =  52;
  cost[8,14,27] =  409;
  cost[8,15,27] =  128;
  cost[8,16,27] =  406;
  cost[8,17,27] =  160;
  cost[8,18,27] =  419;
  cost[8,19,27] =  11;
  cost[8,20,27] =  10;
  cost[8,21,27] =  307;
  cost[9,0,27] =  73;
  cost[9,1,27] =  387;
  cost[9,2,27] =  164;
  cost[9,3,27] =  128;
  cost[9,4,27] =  180;
  cost[9,5,27] =  205;
  cost[9,6,27] =  231;
  cost[9,7,27] =  49;
  cost[9,8,27] =  119;
  cost[9,9,27] =  0;
  cost[9,10,27] =  337;
  cost[9,11,27] =  105;
  cost[9,12,27] =  65;
  cost[9,13,27] =  387;
  cost[9,14,27] =  147;
  cost[9,15,27] =  271;
  cost[9,16,27] =  295;
  cost[9,17,27] =  239;
  cost[9,18,27] =  23;
  cost[9,19,27] =  335;
  cost[9,20,27] =  348;
  cost[9,21,27] =  378;
  cost[10,0,27] =  97;
  cost[10,1,27] =  192;
  cost[10,2,27] =  467;
  cost[10,3,27] =  379;
  cost[10,4,27] =  292;
  cost[10,5,27] =  244;
  cost[10,6,27] =  106;
  cost[10,7,27] =  42;
  cost[10,8,27] =  327;
  cost[10,9,27] =  337;
  cost[10,10,27] =  0;
  cost[10,11,27] =  413;
  cost[10,12,27] =  41;
  cost[10,13,27] =  27;
  cost[10,14,27] =  456;
  cost[10,15,27] =  161;
  cost[10,16,27] =  355;
  cost[10,17,27] =  245;
  cost[10,18,27] =  387;
  cost[10,19,27] =  407;
  cost[10,20,27] =  171;
  cost[10,21,27] =  31;
  cost[11,0,27] =  420;
  cost[11,1,27] =  212;
  cost[11,2,27] =  455;
  cost[11,3,27] =  312;
  cost[11,4,27] =  253;
  cost[11,5,27] =  106;
  cost[11,6,27] =  208;
  cost[11,7,27] =  205;
  cost[11,8,27] =  273;
  cost[11,9,27] =  105;
  cost[11,10,27] =  413;
  cost[11,11,27] =  0;
  cost[11,12,27] =  331;
  cost[11,13,27] =  451;
  cost[11,14,27] =  341;
  cost[11,15,27] =  342;
  cost[11,16,27] =  274;
  cost[11,17,27] =  308;
  cost[11,18,27] =  195;
  cost[11,19,27] =  380;
  cost[11,20,27] =  374;
  cost[11,21,27] =  99;
  cost[12,0,27] =  368;
  cost[12,1,27] =  57;
  cost[12,2,27] =  69;
  cost[12,3,27] =  280;
  cost[12,4,27] =  133;
  cost[12,5,27] =  342;
  cost[12,6,27] =  136;
  cost[12,7,27] =  391;
  cost[12,8,27] =  226;
  cost[12,9,27] =  65;
  cost[12,10,27] =  41;
  cost[12,11,27] =  331;
  cost[12,12,27] =  0;
  cost[12,13,27] =  162;
  cost[12,14,27] =  394;
  cost[12,15,27] =  282;
  cost[12,16,27] =  185;
  cost[12,17,27] =  245;
  cost[12,18,27] =  147;
  cost[12,19,27] =  80;
  cost[12,20,27] =  41;
  cost[12,21,27] =  77;
  cost[13,0,27] =  13;
  cost[13,1,27] =  448;
  cost[13,2,27] =  125;
  cost[13,3,27] =  211;
  cost[13,4,27] =  112;
  cost[13,5,27] =  49;
  cost[13,6,27] =  385;
  cost[13,7,27] =  92;
  cost[13,8,27] =  52;
  cost[13,9,27] =  387;
  cost[13,10,27] =  27;
  cost[13,11,27] =  451;
  cost[13,12,27] =  162;
  cost[13,13,27] =  0;
  cost[13,14,27] =  68;
  cost[13,15,27] =  49;
  cost[13,16,27] =  282;
  cost[13,17,27] =  424;
  cost[13,18,27] =  294;
  cost[13,19,27] =  186;
  cost[13,20,27] =  348;
  cost[13,21,27] =  465;
  cost[14,0,27] =  93;
  cost[14,1,27] =  42;
  cost[14,2,27] =  82;
  cost[14,3,27] =  335;
  cost[14,4,27] =  389;
  cost[14,5,27] =  30;
  cost[14,6,27] =  353;
  cost[14,7,27] =  235;
  cost[14,8,27] =  409;
  cost[14,9,27] =  147;
  cost[14,10,27] =  456;
  cost[14,11,27] =  341;
  cost[14,12,27] =  394;
  cost[14,13,27] =  68;
  cost[14,14,27] =  0;
  cost[14,15,27] =  194;
  cost[14,16,27] =  313;
  cost[14,17,27] =  184;
  cost[14,18,27] =  52;
  cost[14,19,27] =  171;
  cost[14,20,27] =  459;
  cost[14,21,27] =  360;
  cost[15,0,27] =  415;
  cost[15,1,27] =  291;
  cost[15,2,27] =  22;
  cost[15,3,27] =  445;
  cost[15,4,27] =  279;
  cost[15,5,27] =  132;
  cost[15,6,27] =  234;
  cost[15,7,27] =  39;
  cost[15,8,27] =  128;
  cost[15,9,27] =  271;
  cost[15,10,27] =  161;
  cost[15,11,27] =  342;
  cost[15,12,27] =  282;
  cost[15,13,27] =  49;
  cost[15,14,27] =  194;
  cost[15,15,27] =  0;
  cost[15,16,27] =  355;
  cost[15,17,27] =  251;
  cost[15,18,27] =  466;
  cost[15,19,27] =  399;
  cost[15,20,27] =  413;
  cost[15,21,27] =  377;
  cost[16,0,27] =  280;
  cost[16,1,27] =  64;
  cost[16,2,27] =  393;
  cost[16,3,27] =  137;
  cost[16,4,27] =  145;
  cost[16,5,27] =  17;
  cost[16,6,27] =  291;
  cost[16,7,27] =  109;
  cost[16,8,27] =  406;
  cost[16,9,27] =  295;
  cost[16,10,27] =  355;
  cost[16,11,27] =  274;
  cost[16,12,27] =  185;
  cost[16,13,27] =  282;
  cost[16,14,27] =  313;
  cost[16,15,27] =  355;
  cost[16,16,27] =  0;
  cost[16,17,27] =  115;
  cost[16,18,27] =  138;
  cost[16,19,27] =  345;
  cost[16,20,27] =  195;
  cost[16,21,27] =  179;
  cost[17,0,27] =  210;
  cost[17,1,27] =  53;
  cost[17,2,27] =  231;
  cost[17,3,27] =  289;
  cost[17,4,27] =  98;
  cost[17,5,27] =  118;
  cost[17,6,27] =  89;
  cost[17,7,27] =  354;
  cost[17,8,27] =  160;
  cost[17,9,27] =  239;
  cost[17,10,27] =  245;
  cost[17,11,27] =  308;
  cost[17,12,27] =  245;
  cost[17,13,27] =  424;
  cost[17,14,27] =  184;
  cost[17,15,27] =  251;
  cost[17,16,27] =  115;
  cost[17,17,27] =  0;
  cost[17,18,27] =  317;
  cost[17,19,27] =  248;
  cost[17,20,27] =  471;
  cost[17,21,27] =  116;
  cost[18,0,27] =  207;
  cost[18,1,27] =  379;
  cost[18,2,27] =  437;
  cost[18,3,27] =  407;
  cost[18,4,27] =  389;
  cost[18,5,27] =  388;
  cost[18,6,27] =  333;
  cost[18,7,27] =  428;
  cost[18,8,27] =  419;
  cost[18,9,27] =  23;
  cost[18,10,27] =  387;
  cost[18,11,27] =  195;
  cost[18,12,27] =  147;
  cost[18,13,27] =  294;
  cost[18,14,27] =  52;
  cost[18,15,27] =  466;
  cost[18,16,27] =  138;
  cost[18,17,27] =  317;
  cost[18,18,27] =  0;
  cost[18,19,27] =  282;
  cost[18,20,27] =  302;
  cost[18,21,27] =  53;
  cost[19,0,27] =  203;
  cost[19,1,27] =  138;
  cost[19,2,27] =  304;
  cost[19,3,27] =  273;
  cost[19,4,27] =  220;
  cost[19,5,27] =  439;
  cost[19,6,27] =  372;
  cost[19,7,27] =  64;
  cost[19,8,27] =  11;
  cost[19,9,27] =  335;
  cost[19,10,27] =  407;
  cost[19,11,27] =  380;
  cost[19,12,27] =  80;
  cost[19,13,27] =  186;
  cost[19,14,27] =  171;
  cost[19,15,27] =  399;
  cost[19,16,27] =  345;
  cost[19,17,27] =  248;
  cost[19,18,27] =  282;
  cost[19,19,27] =  0;
  cost[19,20,27] =  35;
  cost[19,21,27] =  248;
  cost[20,0,27] =  331;
  cost[20,1,27] =  151;
  cost[20,2,27] =  135;
  cost[20,3,27] =  451;
  cost[20,4,27] =  98;
  cost[20,5,27] =  276;
  cost[20,6,27] =  438;
  cost[20,7,27] =  147;
  cost[20,8,27] =  10;
  cost[20,9,27] =  348;
  cost[20,10,27] =  171;
  cost[20,11,27] =  374;
  cost[20,12,27] =  41;
  cost[20,13,27] =  348;
  cost[20,14,27] =  459;
  cost[20,15,27] =  413;
  cost[20,16,27] =  195;
  cost[20,17,27] =  471;
  cost[20,18,27] =  302;
  cost[20,19,27] =  35;
  cost[20,20,27] =  0;
  cost[20,21,27] =  220;
  cost[21,0,27] =  293;
  cost[21,1,27] =  315;
  cost[21,2,27] =  145;
  cost[21,3,27] =  88;
  cost[21,4,27] =  80;
  cost[21,5,27] =  287;
  cost[21,6,27] =  327;
  cost[21,7,27] =  232;
  cost[21,8,27] =  307;
  cost[21,9,27] =  378;
  cost[21,10,27] =  31;
  cost[21,11,27] =  99;
  cost[21,12,27] =  77;
  cost[21,13,27] =  465;
  cost[21,14,27] =  360;
  cost[21,15,27] =  377;
  cost[21,16,27] =  179;
  cost[21,17,27] =  116;
  cost[21,18,27] =  53;
  cost[21,19,27] =  248;
  cost[21,20,27] =  220;
  cost[21,21,27] =  0;
  cost[0,0,28] =  0;
  cost[0,1,28] =  196;
  cost[0,2,28] =  177;
  cost[0,3,28] =  150;
  cost[0,4,28] =  68;
  cost[0,5,28] =  429;
  cost[0,6,28] =  133;
  cost[0,7,28] =  467;
  cost[0,8,28] =  358;
  cost[0,9,28] =  26;
  cost[0,10,28] =  181;
  cost[0,11,28] =  473;
  cost[0,12,28] =  164;
  cost[0,13,28] =  43;
  cost[0,14,28] =  185;
  cost[0,15,28] =  344;
  cost[0,16,28] =  466;
  cost[0,17,28] =  18;
  cost[0,18,28] =  108;
  cost[0,19,28] =  453;
  cost[0,20,28] =  134;
  cost[0,21,28] =  298;
  cost[1,0,28] =  196;
  cost[1,1,28] =  0;
  cost[1,2,28] =  436;
  cost[1,3,28] =  351;
  cost[1,4,28] =  32;
  cost[1,5,28] =  472;
  cost[1,6,28] =  116;
  cost[1,7,28] =  126;
  cost[1,8,28] =  209;
  cost[1,9,28] =  417;
  cost[1,10,28] =  393;
  cost[1,11,28] =  405;
  cost[1,12,28] =  111;
  cost[1,13,28] =  59;
  cost[1,14,28] =  473;
  cost[1,15,28] =  56;
  cost[1,16,28] =  192;
  cost[1,17,28] =  456;
  cost[1,18,28] =  414;
  cost[1,19,28] =  218;
  cost[1,20,28] =  154;
  cost[1,21,28] =  404;
  cost[2,0,28] =  177;
  cost[2,1,28] =  436;
  cost[2,2,28] =  0;
  cost[2,3,28] =  197;
  cost[2,4,28] =  106;
  cost[2,5,28] =  243;
  cost[2,6,28] =  179;
  cost[2,7,28] =  124;
  cost[2,8,28] =  352;
  cost[2,9,28] =  149;
  cost[2,10,28] =  259;
  cost[2,11,28] =  166;
  cost[2,12,28] =  401;
  cost[2,13,28] =  211;
  cost[2,14,28] =  33;
  cost[2,15,28] =  434;
  cost[2,16,28] =  200;
  cost[2,17,28] =  150;
  cost[2,18,28] =  77;
  cost[2,19,28] =  409;
  cost[2,20,28] =  83;
  cost[2,21,28] =  470;
  cost[3,0,28] =  150;
  cost[3,1,28] =  351;
  cost[3,2,28] =  197;
  cost[3,3,28] =  0;
  cost[3,4,28] =  194;
  cost[3,5,28] =  45;
  cost[3,6,28] =  320;
  cost[3,7,28] =  250;
  cost[3,8,28] =  237;
  cost[3,9,28] =  293;
  cost[3,10,28] =  181;
  cost[3,11,28] =  456;
  cost[3,12,28] =  447;
  cost[3,13,28] =  102;
  cost[3,14,28] =  355;
  cost[3,15,28] =  161;
  cost[3,16,28] =  208;
  cost[3,17,28] =  114;
  cost[3,18,28] =  340;
  cost[3,19,28] =  333;
  cost[3,20,28] =  466;
  cost[3,21,28] =  6;
  cost[4,0,28] =  68;
  cost[4,1,28] =  32;
  cost[4,2,28] =  106;
  cost[4,3,28] =  194;
  cost[4,4,28] =  0;
  cost[4,5,28] =  148;
  cost[4,6,28] =  408;
  cost[4,7,28] =  319;
  cost[4,8,28] =  182;
  cost[4,9,28] =  358;
  cost[4,10,28] =  36;
  cost[4,11,28] =  332;
  cost[4,12,28] =  436;
  cost[4,13,28] =  446;
  cost[4,14,28] =  415;
  cost[4,15,28] =  422;
  cost[4,16,28] =  293;
  cost[4,17,28] =  126;
  cost[4,18,28] =  468;
  cost[4,19,28] =  129;
  cost[4,20,28] =  377;
  cost[4,21,28] =  222;
  cost[5,0,28] =  429;
  cost[5,1,28] =  472;
  cost[5,2,28] =  243;
  cost[5,3,28] =  45;
  cost[5,4,28] =  148;
  cost[5,5,28] =  0;
  cost[5,6,28] =  75;
  cost[5,7,28] =  194;
  cost[5,8,28] =  387;
  cost[5,9,28] =  177;
  cost[5,10,28] =  65;
  cost[5,11,28] =  64;
  cost[5,12,28] =  386;
  cost[5,13,28] =  179;
  cost[5,14,28] =  405;
  cost[5,15,28] =  235;
  cost[5,16,28] =  161;
  cost[5,17,28] =  411;
  cost[5,18,28] =  343;
  cost[5,19,28] =  310;
  cost[5,20,28] =  335;
  cost[5,21,28] =  179;
  cost[6,0,28] =  133;
  cost[6,1,28] =  116;
  cost[6,2,28] =  179;
  cost[6,3,28] =  320;
  cost[6,4,28] =  408;
  cost[6,5,28] =  75;
  cost[6,6,28] =  0;
  cost[6,7,28] =  210;
  cost[6,8,28] =  216;
  cost[6,9,28] =  341;
  cost[6,10,28] =  162;
  cost[6,11,28] =  178;
  cost[6,12,28] =  273;
  cost[6,13,28] =  101;
  cost[6,14,28] =  471;
  cost[6,15,28] =  399;
  cost[6,16,28] =  86;
  cost[6,17,28] =  117;
  cost[6,18,28] =  293;
  cost[6,19,28] =  308;
  cost[6,20,28] =  56;
  cost[6,21,28] =  368;
  cost[7,0,28] =  467;
  cost[7,1,28] =  126;
  cost[7,2,28] =  124;
  cost[7,3,28] =  250;
  cost[7,4,28] =  319;
  cost[7,5,28] =  194;
  cost[7,6,28] =  210;
  cost[7,7,28] =  0;
  cost[7,8,28] =  443;
  cost[7,9,28] =  61;
  cost[7,10,28] =  83;
  cost[7,11,28] =  24;
  cost[7,12,28] =  448;
  cost[7,13,28] =  263;
  cost[7,14,28] =  429;
  cost[7,15,28] =  199;
  cost[7,16,28] =  425;
  cost[7,17,28] =  357;
  cost[7,18,28] =  59;
  cost[7,19,28] =  251;
  cost[7,20,28] =  209;
  cost[7,21,28] =  239;
  cost[8,0,28] =  358;
  cost[8,1,28] =  209;
  cost[8,2,28] =  352;
  cost[8,3,28] =  237;
  cost[8,4,28] =  182;
  cost[8,5,28] =  387;
  cost[8,6,28] =  216;
  cost[8,7,28] =  443;
  cost[8,8,28] =  0;
  cost[8,9,28] =  420;
  cost[8,10,28] =  455;
  cost[8,11,28] =  118;
  cost[8,12,28] =  98;
  cost[8,13,28] =  149;
  cost[8,14,28] =  391;
  cost[8,15,28] =  200;
  cost[8,16,28] =  136;
  cost[8,17,28] =  307;
  cost[8,18,28] =  286;
  cost[8,19,28] =  253;
  cost[8,20,28] =  116;
  cost[8,21,28] =  111;
  cost[9,0,28] =  26;
  cost[9,1,28] =  417;
  cost[9,2,28] =  149;
  cost[9,3,28] =  293;
  cost[9,4,28] =  358;
  cost[9,5,28] =  177;
  cost[9,6,28] =  341;
  cost[9,7,28] =  61;
  cost[9,8,28] =  420;
  cost[9,9,28] =  0;
  cost[9,10,28] =  0;
  cost[9,11,28] =  129;
  cost[9,12,28] =  270;
  cost[9,13,28] =  62;
  cost[9,14,28] =  213;
  cost[9,15,28] =  294;
  cost[9,16,28] =  26;
  cost[9,17,28] =  477;
  cost[9,18,28] =  240;
  cost[9,19,28] =  226;
  cost[9,20,28] =  418;
  cost[9,21,28] =  114;
  cost[10,0,28] =  181;
  cost[10,1,28] =  393;
  cost[10,2,28] =  259;
  cost[10,3,28] =  181;
  cost[10,4,28] =  36;
  cost[10,5,28] =  65;
  cost[10,6,28] =  162;
  cost[10,7,28] =  83;
  cost[10,8,28] =  455;
  cost[10,9,28] =  0;
  cost[10,10,28] =  0;
  cost[10,11,28] =  186;
  cost[10,12,28] =  323;
  cost[10,13,28] =  40;
  cost[10,14,28] =  446;
  cost[10,15,28] =  259;
  cost[10,16,28] =  11;
  cost[10,17,28] =  80;
  cost[10,18,28] =  358;
  cost[10,19,28] =  160;
  cost[10,20,28] =  472;
  cost[10,21,28] =  75;
  cost[11,0,28] =  473;
  cost[11,1,28] =  405;
  cost[11,2,28] =  166;
  cost[11,3,28] =  456;
  cost[11,4,28] =  332;
  cost[11,5,28] =  64;
  cost[11,6,28] =  178;
  cost[11,7,28] =  24;
  cost[11,8,28] =  118;
  cost[11,9,28] =  129;
  cost[11,10,28] =  186;
  cost[11,11,28] =  0;
  cost[11,12,28] =  295;
  cost[11,13,28] =  362;
  cost[11,14,28] =  67;
  cost[11,15,28] =  412;
  cost[11,16,28] =  473;
  cost[11,17,28] =  377;
  cost[11,18,28] =  413;
  cost[11,19,28] =  119;
  cost[11,20,28] =  164;
  cost[11,21,28] =  475;
  cost[12,0,28] =  164;
  cost[12,1,28] =  111;
  cost[12,2,28] =  401;
  cost[12,3,28] =  447;
  cost[12,4,28] =  436;
  cost[12,5,28] =  386;
  cost[12,6,28] =  273;
  cost[12,7,28] =  448;
  cost[12,8,28] =  98;
  cost[12,9,28] =  270;
  cost[12,10,28] =  323;
  cost[12,11,28] =  295;
  cost[12,12,28] =  0;
  cost[12,13,28] =  459;
  cost[12,14,28] =  18;
  cost[12,15,28] =  326;
  cost[12,16,28] =  215;
  cost[12,17,28] =  244;
  cost[12,18,28] =  260;
  cost[12,19,28] =  330;
  cost[12,20,28] =  45;
  cost[12,21,28] =  446;
  cost[13,0,28] =  43;
  cost[13,1,28] =  59;
  cost[13,2,28] =  211;
  cost[13,3,28] =  102;
  cost[13,4,28] =  446;
  cost[13,5,28] =  179;
  cost[13,6,28] =  101;
  cost[13,7,28] =  263;
  cost[13,8,28] =  149;
  cost[13,9,28] =  62;
  cost[13,10,28] =  40;
  cost[13,11,28] =  362;
  cost[13,12,28] =  459;
  cost[13,13,28] =  0;
  cost[13,14,28] =  86;
  cost[13,15,28] =  409;
  cost[13,16,28] =  429;
  cost[13,17,28] =  98;
  cost[13,18,28] =  6;
  cost[13,19,28] =  304;
  cost[13,20,28] =  259;
  cost[13,21,28] =  479;
  cost[14,0,28] =  185;
  cost[14,1,28] =  473;
  cost[14,2,28] =  33;
  cost[14,3,28] =  355;
  cost[14,4,28] =  415;
  cost[14,5,28] =  405;
  cost[14,6,28] =  471;
  cost[14,7,28] =  429;
  cost[14,8,28] =  391;
  cost[14,9,28] =  213;
  cost[14,10,28] =  446;
  cost[14,11,28] =  67;
  cost[14,12,28] =  18;
  cost[14,13,28] =  86;
  cost[14,14,28] =  0;
  cost[14,15,28] =  72;
  cost[14,16,28] =  290;
  cost[14,17,28] =  257;
  cost[14,18,28] =  140;
  cost[14,19,28] =  219;
  cost[14,20,28] =  247;
  cost[14,21,28] =  34;
  cost[15,0,28] =  344;
  cost[15,1,28] =  56;
  cost[15,2,28] =  434;
  cost[15,3,28] =  161;
  cost[15,4,28] =  422;
  cost[15,5,28] =  235;
  cost[15,6,28] =  399;
  cost[15,7,28] =  199;
  cost[15,8,28] =  200;
  cost[15,9,28] =  294;
  cost[15,10,28] =  259;
  cost[15,11,28] =  412;
  cost[15,12,28] =  326;
  cost[15,13,28] =  409;
  cost[15,14,28] =  72;
  cost[15,15,28] =  0;
  cost[15,16,28] =  366;
  cost[15,17,28] =  198;
  cost[15,18,28] =  139;
  cost[15,19,28] =  215;
  cost[15,20,28] =  173;
  cost[15,21,28] =  158;
  cost[16,0,28] =  466;
  cost[16,1,28] =  192;
  cost[16,2,28] =  200;
  cost[16,3,28] =  208;
  cost[16,4,28] =  293;
  cost[16,5,28] =  161;
  cost[16,6,28] =  86;
  cost[16,7,28] =  425;
  cost[16,8,28] =  136;
  cost[16,9,28] =  26;
  cost[16,10,28] =  11;
  cost[16,11,28] =  473;
  cost[16,12,28] =  215;
  cost[16,13,28] =  429;
  cost[16,14,28] =  290;
  cost[16,15,28] =  366;
  cost[16,16,28] =  0;
  cost[16,17,28] =  389;
  cost[16,18,28] =  402;
  cost[16,19,28] =  318;
  cost[16,20,28] =  235;
  cost[16,21,28] =  448;
  cost[17,0,28] =  18;
  cost[17,1,28] =  456;
  cost[17,2,28] =  150;
  cost[17,3,28] =  114;
  cost[17,4,28] =  126;
  cost[17,5,28] =  411;
  cost[17,6,28] =  117;
  cost[17,7,28] =  357;
  cost[17,8,28] =  307;
  cost[17,9,28] =  477;
  cost[17,10,28] =  80;
  cost[17,11,28] =  377;
  cost[17,12,28] =  244;
  cost[17,13,28] =  98;
  cost[17,14,28] =  257;
  cost[17,15,28] =  198;
  cost[17,16,28] =  389;
  cost[17,17,28] =  0;
  cost[17,18,28] =  405;
  cost[17,19,28] =  50;
  cost[17,20,28] =  207;
  cost[17,21,28] =  350;
  cost[18,0,28] =  108;
  cost[18,1,28] =  414;
  cost[18,2,28] =  77;
  cost[18,3,28] =  340;
  cost[18,4,28] =  468;
  cost[18,5,28] =  343;
  cost[18,6,28] =  293;
  cost[18,7,28] =  59;
  cost[18,8,28] =  286;
  cost[18,9,28] =  240;
  cost[18,10,28] =  358;
  cost[18,11,28] =  413;
  cost[18,12,28] =  260;
  cost[18,13,28] =  6;
  cost[18,14,28] =  140;
  cost[18,15,28] =  139;
  cost[18,16,28] =  402;
  cost[18,17,28] =  405;
  cost[18,18,28] =  0;
  cost[18,19,28] =  213;
  cost[18,20,28] =  170;
  cost[18,21,28] =  408;
  cost[19,0,28] =  453;
  cost[19,1,28] =  218;
  cost[19,2,28] =  409;
  cost[19,3,28] =  333;
  cost[19,4,28] =  129;
  cost[19,5,28] =  310;
  cost[19,6,28] =  308;
  cost[19,7,28] =  251;
  cost[19,8,28] =  253;
  cost[19,9,28] =  226;
  cost[19,10,28] =  160;
  cost[19,11,28] =  119;
  cost[19,12,28] =  330;
  cost[19,13,28] =  304;
  cost[19,14,28] =  219;
  cost[19,15,28] =  215;
  cost[19,16,28] =  318;
  cost[19,17,28] =  50;
  cost[19,18,28] =  213;
  cost[19,19,28] =  0;
  cost[19,20,28] =  66;
  cost[19,21,28] =  480;
  cost[20,0,28] =  134;
  cost[20,1,28] =  154;
  cost[20,2,28] =  83;
  cost[20,3,28] =  466;
  cost[20,4,28] =  377;
  cost[20,5,28] =  335;
  cost[20,6,28] =  56;
  cost[20,7,28] =  209;
  cost[20,8,28] =  116;
  cost[20,9,28] =  418;
  cost[20,10,28] =  472;
  cost[20,11,28] =  164;
  cost[20,12,28] =  45;
  cost[20,13,28] =  259;
  cost[20,14,28] =  247;
  cost[20,15,28] =  173;
  cost[20,16,28] =  235;
  cost[20,17,28] =  207;
  cost[20,18,28] =  170;
  cost[20,19,28] =  66;
  cost[20,20,28] =  0;
  cost[20,21,28] =  323;
  cost[21,0,28] =  298;
  cost[21,1,28] =  404;
  cost[21,2,28] =  470;
  cost[21,3,28] =  6;
  cost[21,4,28] =  222;
  cost[21,5,28] =  179;
  cost[21,6,28] =  368;
  cost[21,7,28] =  239;
  cost[21,8,28] =  111;
  cost[21,9,28] =  114;
  cost[21,10,28] =  75;
  cost[21,11,28] =  475;
  cost[21,12,28] =  446;
  cost[21,13,28] =  479;
  cost[21,14,28] =  34;
  cost[21,15,28] =  158;
  cost[21,16,28] =  448;
  cost[21,17,28] =  350;
  cost[21,18,28] =  408;
  cost[21,19,28] =  480;
  cost[21,20,28] =  323;
  cost[21,21,28] =  0;
  cost[0,0,29] =  0;
  cost[0,1,29] =  87;
  cost[0,2,29] =  171;
  cost[0,3,29] =  383;
  cost[0,4,29] =  454;
  cost[0,5,29] =  369;
  cost[0,6,29] =  39;
  cost[0,7,29] =  185;
  cost[0,8,29] =  59;
  cost[0,9,29] =  197;
  cost[0,10,29] =  244;
  cost[0,11,29] =  448;
  cost[0,12,29] =  116;
  cost[0,13,29] =  78;
  cost[0,14,29] =  200;
  cost[0,15,29] =  80;
  cost[0,16,29] =  360;
  cost[0,17,29] =  121;
  cost[0,18,29] =  131;
  cost[0,19,29] =  83;
  cost[0,20,29] =  471;
  cost[0,21,29] =  280;
  cost[1,0,29] =  87;
  cost[1,1,29] =  0;
  cost[1,2,29] =  158;
  cost[1,3,29] =  204;
  cost[1,4,29] =  21;
  cost[1,5,29] =  224;
  cost[1,6,29] =  201;
  cost[1,7,29] =  37;
  cost[1,8,29] =  64;
  cost[1,9,29] =  338;
  cost[1,10,29] =  272;
  cost[1,11,29] =  151;
  cost[1,12,29] =  25;
  cost[1,13,29] =  171;
  cost[1,14,29] =  121;
  cost[1,15,29] =  395;
  cost[1,16,29] =  211;
  cost[1,17,29] =  307;
  cost[1,18,29] =  454;
  cost[1,19,29] =  408;
  cost[1,20,29] =  67;
  cost[1,21,29] =  418;
  cost[2,0,29] =  171;
  cost[2,1,29] =  158;
  cost[2,2,29] =  0;
  cost[2,3,29] =  146;
  cost[2,4,29] =  135;
  cost[2,5,29] =  121;
  cost[2,6,29] =  22;
  cost[2,7,29] =  256;
  cost[2,8,29] =  253;
  cost[2,9,29] =  106;
  cost[2,10,29] =  244;
  cost[2,11,29] =  49;
  cost[2,12,29] =  403;
  cost[2,13,29] =  402;
  cost[2,14,29] =  254;
  cost[2,15,29] =  425;
  cost[2,16,29] =  142;
  cost[2,17,29] =  456;
  cost[2,18,29] =  463;
  cost[2,19,29] =  206;
  cost[2,20,29] =  311;
  cost[2,21,29] =  251;
  cost[3,0,29] =  383;
  cost[3,1,29] =  204;
  cost[3,2,29] =  146;
  cost[3,3,29] =  0;
  cost[3,4,29] =  337;
  cost[3,5,29] =  423;
  cost[3,6,29] =  479;
  cost[3,7,29] =  248;
  cost[3,8,29] =  151;
  cost[3,9,29] =  302;
  cost[3,10,29] =  218;
  cost[3,11,29] =  75;
  cost[3,12,29] =  370;
  cost[3,13,29] =  153;
  cost[3,14,29] =  116;
  cost[3,15,29] =  32;
  cost[3,16,29] =  288;
  cost[3,17,29] =  238;
  cost[3,18,29] =  55;
  cost[3,19,29] =  60;
  cost[3,20,29] =  7;
  cost[3,21,29] =  161;
  cost[4,0,29] =  454;
  cost[4,1,29] =  21;
  cost[4,2,29] =  135;
  cost[4,3,29] =  337;
  cost[4,4,29] =  0;
  cost[4,5,29] =  57;
  cost[4,6,29] =  81;
  cost[4,7,29] =  223;
  cost[4,8,29] =  312;
  cost[4,9,29] =  22;
  cost[4,10,29] =  365;
  cost[4,11,29] =  284;
  cost[4,12,29] =  2;
  cost[4,13,29] =  88;
  cost[4,14,29] =  112;
  cost[4,15,29] =  253;
  cost[4,16,29] =  446;
  cost[4,17,29] =  449;
  cost[4,18,29] =  193;
  cost[4,19,29] =  442;
  cost[4,20,29] =  213;
  cost[4,21,29] =  344;
  cost[5,0,29] =  369;
  cost[5,1,29] =  224;
  cost[5,2,29] =  121;
  cost[5,3,29] =  423;
  cost[5,4,29] =  57;
  cost[5,5,29] =  0;
  cost[5,6,29] =  431;
  cost[5,7,29] =  420;
  cost[5,8,29] =  147;
  cost[5,9,29] =  101;
  cost[5,10,29] =  53;
  cost[5,11,29] =  180;
  cost[5,12,29] =  389;
  cost[5,13,29] =  291;
  cost[5,14,29] =  235;
  cost[5,15,29] =  450;
  cost[5,16,29] =  299;
  cost[5,17,29] =  397;
  cost[5,18,29] =  271;
  cost[5,19,29] =  357;
  cost[5,20,29] =  479;
  cost[5,21,29] =  10;
  cost[6,0,29] =  39;
  cost[6,1,29] =  201;
  cost[6,2,29] =  22;
  cost[6,3,29] =  479;
  cost[6,4,29] =  81;
  cost[6,5,29] =  431;
  cost[6,6,29] =  0;
  cost[6,7,29] =  18;
  cost[6,8,29] =  376;
  cost[6,9,29] =  470;
  cost[6,10,29] =  20;
  cost[6,11,29] =  465;
  cost[6,12,29] =  98;
  cost[6,13,29] =  273;
  cost[6,14,29] =  428;
  cost[6,15,29] =  63;
  cost[6,16,29] =  467;
  cost[6,17,29] =  386;
  cost[6,18,29] =  277;
  cost[6,19,29] =  327;
  cost[6,20,29] =  163;
  cost[6,21,29] =  225;
  cost[7,0,29] =  185;
  cost[7,1,29] =  37;
  cost[7,2,29] =  256;
  cost[7,3,29] =  248;
  cost[7,4,29] =  223;
  cost[7,5,29] =  420;
  cost[7,6,29] =  18;
  cost[7,7,29] =  0;
  cost[7,8,29] =  311;
  cost[7,9,29] =  326;
  cost[7,10,29] =  317;
  cost[7,11,29] =  7;
  cost[7,12,29] =  232;
  cost[7,13,29] =  125;
  cost[7,14,29] =  243;
  cost[7,15,29] =  199;
  cost[7,16,29] =  424;
  cost[7,17,29] =  156;
  cost[7,18,29] =  470;
  cost[7,19,29] =  297;
  cost[7,20,29] =  151;
  cost[7,21,29] =  481;
  cost[8,0,29] =  59;
  cost[8,1,29] =  64;
  cost[8,2,29] =  253;
  cost[8,3,29] =  151;
  cost[8,4,29] =  312;
  cost[8,5,29] =  147;
  cost[8,6,29] =  376;
  cost[8,7,29] =  311;
  cost[8,8,29] =  0;
  cost[8,9,29] =  169;
  cost[8,10,29] =  373;
  cost[8,11,29] =  469;
  cost[8,12,29] =  189;
  cost[8,13,29] =  354;
  cost[8,14,29] =  84;
  cost[8,15,29] =  463;
  cost[8,16,29] =  299;
  cost[8,17,29] =  147;
  cost[8,18,29] =  446;
  cost[8,19,29] =  201;
  cost[8,20,29] =  424;
  cost[8,21,29] =  290;
  cost[9,0,29] =  197;
  cost[9,1,29] =  338;
  cost[9,2,29] =  106;
  cost[9,3,29] =  302;
  cost[9,4,29] =  22;
  cost[9,5,29] =  101;
  cost[9,6,29] =  470;
  cost[9,7,29] =  326;
  cost[9,8,29] =  169;
  cost[9,9,29] =  0;
  cost[9,10,29] =  165;
  cost[9,11,29] =  70;
  cost[9,12,29] =  192;
  cost[9,13,29] =  8;
  cost[9,14,29] =  387;
  cost[9,15,29] =  199;
  cost[9,16,29] =  240;
  cost[9,17,29] =  28;
  cost[9,18,29] =  442;
  cost[9,19,29] =  440;
  cost[9,20,29] =  453;
  cost[9,21,29] =  115;
  cost[10,0,29] =  244;
  cost[10,1,29] =  272;
  cost[10,2,29] =  244;
  cost[10,3,29] =  218;
  cost[10,4,29] =  365;
  cost[10,5,29] =  53;
  cost[10,6,29] =  20;
  cost[10,7,29] =  317;
  cost[10,8,29] =  373;
  cost[10,9,29] =  165;
  cost[10,10,29] =  0;
  cost[10,11,29] =  267;
  cost[10,12,29] =  266;
  cost[10,13,29] =  423;
  cost[10,14,29] =  266;
  cost[10,15,29] =  436;
  cost[10,16,29] =  313;
  cost[10,17,29] =  251;
  cost[10,18,29] =  142;
  cost[10,19,29] =  184;
  cost[10,20,29] =  335;
  cost[10,21,29] =  121;
  cost[11,0,29] =  448;
  cost[11,1,29] =  151;
  cost[11,2,29] =  49;
  cost[11,3,29] =  75;
  cost[11,4,29] =  284;
  cost[11,5,29] =  180;
  cost[11,6,29] =  465;
  cost[11,7,29] =  7;
  cost[11,8,29] =  469;
  cost[11,9,29] =  70;
  cost[11,10,29] =  267;
  cost[11,11,29] =  0;
  cost[11,12,29] =  483;
  cost[11,13,29] =  84;
  cost[11,14,29] =  200;
  cost[11,15,29] =  424;
  cost[11,16,29] =  374;
  cost[11,17,29] =  82;
  cost[11,18,29] =  106;
  cost[11,19,29] =  445;
  cost[11,20,29] =  274;
  cost[11,21,29] =  114;
  cost[12,0,29] =  116;
  cost[12,1,29] =  25;
  cost[12,2,29] =  403;
  cost[12,3,29] =  370;
  cost[12,4,29] =  2;
  cost[12,5,29] =  389;
  cost[12,6,29] =  98;
  cost[12,7,29] =  232;
  cost[12,8,29] =  189;
  cost[12,9,29] =  192;
  cost[12,10,29] =  266;
  cost[12,11,29] =  483;
  cost[12,12,29] =  0;
  cost[12,13,29] =  474;
  cost[12,14,29] =  355;
  cost[12,15,29] =  377;
  cost[12,16,29] =  433;
  cost[12,17,29] =  311;
  cost[12,18,29] =  347;
  cost[12,19,29] =  64;
  cost[12,20,29] =  254;
  cost[12,21,29] =  130;
  cost[13,0,29] =  78;
  cost[13,1,29] =  171;
  cost[13,2,29] =  402;
  cost[13,3,29] =  153;
  cost[13,4,29] =  88;
  cost[13,5,29] =  291;
  cost[13,6,29] =  273;
  cost[13,7,29] =  125;
  cost[13,8,29] =  354;
  cost[13,9,29] =  8;
  cost[13,10,29] =  423;
  cost[13,11,29] =  84;
  cost[13,12,29] =  474;
  cost[13,13,29] =  0;
  cost[13,14,29] =  194;
  cost[13,15,29] =  396;
  cost[13,16,29] =  284;
  cost[13,17,29] =  23;
  cost[13,18,29] =  164;
  cost[13,19,29] =  426;
  cost[13,20,29] =  208;
  cost[13,21,29] =  15;
  cost[14,0,29] =  200;
  cost[14,1,29] =  121;
  cost[14,2,29] =  254;
  cost[14,3,29] =  116;
  cost[14,4,29] =  112;
  cost[14,5,29] =  235;
  cost[14,6,29] =  428;
  cost[14,7,29] =  243;
  cost[14,8,29] =  84;
  cost[14,9,29] =  387;
  cost[14,10,29] =  266;
  cost[14,11,29] =  200;
  cost[14,12,29] =  355;
  cost[14,13,29] =  194;
  cost[14,14,29] =  0;
  cost[14,15,29] =  207;
  cost[14,16,29] =  15;
  cost[14,17,29] =  148;
  cost[14,18,29] =  408;
  cost[14,19,29] =  439;
  cost[14,20,29] =  39;
  cost[14,21,29] =  6;
  cost[15,0,29] =  80;
  cost[15,1,29] =  395;
  cost[15,2,29] =  425;
  cost[15,3,29] =  32;
  cost[15,4,29] =  253;
  cost[15,5,29] =  450;
  cost[15,6,29] =  63;
  cost[15,7,29] =  199;
  cost[15,8,29] =  463;
  cost[15,9,29] =  199;
  cost[15,10,29] =  436;
  cost[15,11,29] =  424;
  cost[15,12,29] =  377;
  cost[15,13,29] =  396;
  cost[15,14,29] =  207;
  cost[15,15,29] =  0;
  cost[15,16,29] =  0;
  cost[15,17,29] =  281;
  cost[15,18,29] =  177;
  cost[15,19,29] =  349;
  cost[15,20,29] =  271;
  cost[15,21,29] =  48;
  cost[16,0,29] =  360;
  cost[16,1,29] =  211;
  cost[16,2,29] =  142;
  cost[16,3,29] =  288;
  cost[16,4,29] =  446;
  cost[16,5,29] =  299;
  cost[16,6,29] =  467;
  cost[16,7,29] =  424;
  cost[16,8,29] =  299;
  cost[16,9,29] =  240;
  cost[16,10,29] =  313;
  cost[16,11,29] =  374;
  cost[16,12,29] =  433;
  cost[16,13,29] =  284;
  cost[16,14,29] =  15;
  cost[16,15,29] =  0;
  cost[16,16,29] =  0;
  cost[16,17,29] =  221;
  cost[16,18,29] =  360;
  cost[16,19,29] =  106;
  cost[16,20,29] =  285;
  cost[16,21,29] =  131;
  cost[17,0,29] =  121;
  cost[17,1,29] =  307;
  cost[17,2,29] =  456;
  cost[17,3,29] =  238;
  cost[17,4,29] =  449;
  cost[17,5,29] =  397;
  cost[17,6,29] =  386;
  cost[17,7,29] =  156;
  cost[17,8,29] =  147;
  cost[17,9,29] =  28;
  cost[17,10,29] =  251;
  cost[17,11,29] =  82;
  cost[17,12,29] =  311;
  cost[17,13,29] =  23;
  cost[17,14,29] =  148;
  cost[17,15,29] =  281;
  cost[17,16,29] =  221;
  cost[17,17,29] =  0;
  cost[17,18,29] =  133;
  cost[17,19,29] =  325;
  cost[17,20,29] =  149;
  cost[17,21,29] =  417;
  cost[18,0,29] =  131;
  cost[18,1,29] =  454;
  cost[18,2,29] =  463;
  cost[18,3,29] =  55;
  cost[18,4,29] =  193;
  cost[18,5,29] =  271;
  cost[18,6,29] =  277;
  cost[18,7,29] =  470;
  cost[18,8,29] =  446;
  cost[18,9,29] =  442;
  cost[18,10,29] =  142;
  cost[18,11,29] =  106;
  cost[18,12,29] =  347;
  cost[18,13,29] =  164;
  cost[18,14,29] =  408;
  cost[18,15,29] =  177;
  cost[18,16,29] =  360;
  cost[18,17,29] =  133;
  cost[18,18,29] =  0;
  cost[18,19,29] =  313;
  cost[18,20,29] =  360;
  cost[18,21,29] =  73;
  cost[19,0,29] =  83;
  cost[19,1,29] =  408;
  cost[19,2,29] =  206;
  cost[19,3,29] =  60;
  cost[19,4,29] =  442;
  cost[19,5,29] =  357;
  cost[19,6,29] =  327;
  cost[19,7,29] =  297;
  cost[19,8,29] =  201;
  cost[19,9,29] =  440;
  cost[19,10,29] =  184;
  cost[19,11,29] =  445;
  cost[19,12,29] =  64;
  cost[19,13,29] =  426;
  cost[19,14,29] =  439;
  cost[19,15,29] =  349;
  cost[19,16,29] =  106;
  cost[19,17,29] =  325;
  cost[19,18,29] =  313;
  cost[19,19,29] =  0;
  cost[19,20,29] =  424;
  cost[19,21,29] =  281;
  cost[20,0,29] =  471;
  cost[20,1,29] =  67;
  cost[20,2,29] =  311;
  cost[20,3,29] =  7;
  cost[20,4,29] =  213;
  cost[20,5,29] =  479;
  cost[20,6,29] =  163;
  cost[20,7,29] =  151;
  cost[20,8,29] =  424;
  cost[20,9,29] =  453;
  cost[20,10,29] =  335;
  cost[20,11,29] =  274;
  cost[20,12,29] =  254;
  cost[20,13,29] =  208;
  cost[20,14,29] =  39;
  cost[20,15,29] =  271;
  cost[20,16,29] =  285;
  cost[20,17,29] =  149;
  cost[20,18,29] =  360;
  cost[20,19,29] =  424;
  cost[20,20,29] =  0;
  cost[20,21,29] =  89;
  cost[21,0,29] =  280;
  cost[21,1,29] =  418;
  cost[21,2,29] =  251;
  cost[21,3,29] =  161;
  cost[21,4,29] =  344;
  cost[21,5,29] =  10;
  cost[21,6,29] =  225;
  cost[21,7,29] =  481;
  cost[21,8,29] =  290;
  cost[21,9,29] =  115;
  cost[21,10,29] =  121;
  cost[21,11,29] =  114;
  cost[21,12,29] =  130;
  cost[21,13,29] =  15;
  cost[21,14,29] =  6;
  cost[21,15,29] =  48;
  cost[21,16,29] =  131;
  cost[21,17,29] =  417;
  cost[21,18,29] =  73;
  cost[21,19,29] =  281;
  cost[21,20,29] =  89;
  cost[21,21,29] =  0;
  cost[0,0,30] =  0;
  cost[0,1,30] =  128;
  cost[0,2,30] =  212;
  cost[0,3,30] =  363;
  cost[0,4,30] =  129;
  cost[0,5,30] =  10;
  cost[0,6,30] =  56;
  cost[0,7,30] =  478;
  cost[0,8,30] =  282;
  cost[0,9,30] =  105;
  cost[0,10,30] =  238;
  cost[0,11,30] =  19;
  cost[0,12,30] =  465;
  cost[0,13,30] =  344;
  cost[0,14,30] =  305;
  cost[0,15,30] =  112;
  cost[0,16,30] =  97;
  cost[0,17,30] =  439;
  cost[0,18,30] =  438;
  cost[0,19,30] =  247;
  cost[0,20,30] =  373;
  cost[0,21,30] =  303;
  cost[1,0,30] =  128;
  cost[1,1,30] =  0;
  cost[1,2,30] =  249;
  cost[1,3,30] =  377;
  cost[1,4,30] =  406;
  cost[1,5,30] =  189;
  cost[1,6,30] =  175;
  cost[1,7,30] =  268;
  cost[1,8,30] =  278;
  cost[1,9,30] =  381;
  cost[1,10,30] =  85;
  cost[1,11,30] =  407;
  cost[1,12,30] =  109;
  cost[1,13,30] =  448;
  cost[1,14,30] =  52;
  cost[1,15,30] =  120;
  cost[1,16,30] =  20;
  cost[1,17,30] =  47;
  cost[1,18,30] =  402;
  cost[1,19,30] =  125;
  cost[1,20,30] =  285;
  cost[1,21,30] =  422;
  cost[2,0,30] =  212;
  cost[2,1,30] =  249;
  cost[2,2,30] =  0;
  cost[2,3,30] =  146;
  cost[2,4,30] =  243;
  cost[2,5,30] =  220;
  cost[2,6,30] =  244;
  cost[2,7,30] =  198;
  cost[2,8,30] =  174;
  cost[2,9,30] =  8;
  cost[2,10,30] =  87;
  cost[2,11,30] =  478;
  cost[2,12,30] =  85;
  cost[2,13,30] =  337;
  cost[2,14,30] =  372;
  cost[2,15,30] =  8;
  cost[2,16,30] =  43;
  cost[2,17,30] =  63;
  cost[2,18,30] =  276;
  cost[2,19,30] =  321;
  cost[2,20,30] =  444;
  cost[2,21,30] =  361;
  cost[3,0,30] =  363;
  cost[3,1,30] =  377;
  cost[3,2,30] =  146;
  cost[3,3,30] =  0;
  cost[3,4,30] =  70;
  cost[3,5,30] =  325;
  cost[3,6,30] =  298;
  cost[3,7,30] =  190;
  cost[3,8,30] =  345;
  cost[3,9,30] =  345;
  cost[3,10,30] =  109;
  cost[3,11,30] =  471;
  cost[3,12,30] =  147;
  cost[3,13,30] =  47;
  cost[3,14,30] =  94;
  cost[3,15,30] =  294;
  cost[3,16,30] =  291;
  cost[3,17,30] =  314;
  cost[3,18,30] =  55;
  cost[3,19,30] =  5;
  cost[3,20,30] =  5;
  cost[3,21,30] =  63;
  cost[4,0,30] =  129;
  cost[4,1,30] =  406;
  cost[4,2,30] =  243;
  cost[4,3,30] =  70;
  cost[4,4,30] =  0;
  cost[4,5,30] =  0;
  cost[4,6,30] =  148;
  cost[4,7,30] =  431;
  cost[4,8,30] =  372;
  cost[4,9,30] =  156;
  cost[4,10,30] =  474;
  cost[4,11,30] =  435;
  cost[4,12,30] =  432;
  cost[4,13,30] =  312;
  cost[4,14,30] =  396;
  cost[4,15,30] =  309;
  cost[4,16,30] =  73;
  cost[4,17,30] =  466;
  cost[4,18,30] =  151;
  cost[4,19,30] =  371;
  cost[4,20,30] =  173;
  cost[4,21,30] =  12;
  cost[5,0,30] =  10;
  cost[5,1,30] =  189;
  cost[5,2,30] =  220;
  cost[5,3,30] =  325;
  cost[5,4,30] =  0;
  cost[5,5,30] =  0;
  cost[5,6,30] =  282;
  cost[5,7,30] =  0;
  cost[5,8,30] =  380;
  cost[5,9,30] =  329;
  cost[5,10,30] =  94;
  cost[5,11,30] =  191;
  cost[5,12,30] =  136;
  cost[5,13,30] =  409;
  cost[5,14,30] =  246;
  cost[5,15,30] =  142;
  cost[5,16,30] =  414;
  cost[5,17,30] =  309;
  cost[5,18,30] =  236;
  cost[5,19,30] =  414;
  cost[5,20,30] =  458;
  cost[5,21,30] =  183;
  cost[6,0,30] =  56;
  cost[6,1,30] =  175;
  cost[6,2,30] =  244;
  cost[6,3,30] =  298;
  cost[6,4,30] =  148;
  cost[6,5,30] =  282;
  cost[6,6,30] =  0;
  cost[6,7,30] =  130;
  cost[6,8,30] =  174;
  cost[6,9,30] =  254;
  cost[6,10,30] =  79;
  cost[6,11,30] =  2;
  cost[6,12,30] =  167;
  cost[6,13,30] =  389;
  cost[6,14,30] =  76;
  cost[6,15,30] =  149;
  cost[6,16,30] =  56;
  cost[6,17,30] =  447;
  cost[6,18,30] =  322;
  cost[6,19,30] =  69;
  cost[6,20,30] =  197;
  cost[6,21,30] =  121;
  cost[7,0,30] =  478;
  cost[7,1,30] =  268;
  cost[7,2,30] =  198;
  cost[7,3,30] =  190;
  cost[7,4,30] =  431;
  cost[7,5,30] =  0;
  cost[7,6,30] =  130;
  cost[7,7,30] =  0;
  cost[7,8,30] =  93;
  cost[7,9,30] =  450;
  cost[7,10,30] =  163;
  cost[7,11,30] =  285;
  cost[7,12,30] =  103;
  cost[7,13,30] =  88;
  cost[7,14,30] =  47;
  cost[7,15,30] =  246;
  cost[7,16,30] =  19;
  cost[7,17,30] =  357;
  cost[7,18,30] =  482;
  cost[7,19,30] =  433;
  cost[7,20,30] =  331;
  cost[7,21,30] =  182;
  cost[8,0,30] =  282;
  cost[8,1,30] =  278;
  cost[8,2,30] =  174;
  cost[8,3,30] =  345;
  cost[8,4,30] =  372;
  cost[8,5,30] =  380;
  cost[8,6,30] =  174;
  cost[8,7,30] =  93;
  cost[8,8,30] =  0;
  cost[8,9,30] =  462;
  cost[8,10,30] =  356;
  cost[8,11,30] =  23;
  cost[8,12,30] =  58;
  cost[8,13,30] =  359;
  cost[8,14,30] =  190;
  cost[8,15,30] =  447;
  cost[8,16,30] =  435;
  cost[8,17,30] =  340;
  cost[8,18,30] =  20;
  cost[8,19,30] =  398;
  cost[8,20,30] =  179;
  cost[8,21,30] =  89;
  cost[9,0,30] =  105;
  cost[9,1,30] =  381;
  cost[9,2,30] =  8;
  cost[9,3,30] =  345;
  cost[9,4,30] =  156;
  cost[9,5,30] =  329;
  cost[9,6,30] =  254;
  cost[9,7,30] =  450;
  cost[9,8,30] =  462;
  cost[9,9,30] =  0;
  cost[9,10,30] =  300;
  cost[9,11,30] =  158;
  cost[9,12,30] =  205;
  cost[9,13,30] =  267;
  cost[9,14,30] =  322;
  cost[9,15,30] =  7;
  cost[9,16,30] =  370;
  cost[9,17,30] =  411;
  cost[9,18,30] =  54;
  cost[9,19,30] =  132;
  cost[9,20,30] =  430;
  cost[9,21,30] =  412;
  cost[10,0,30] =  238;
  cost[10,1,30] =  85;
  cost[10,2,30] =  87;
  cost[10,3,30] =  109;
  cost[10,4,30] =  474;
  cost[10,5,30] =  94;
  cost[10,6,30] =  79;
  cost[10,7,30] =  163;
  cost[10,8,30] =  356;
  cost[10,9,30] =  300;
  cost[10,10,30] =  0;
  cost[10,11,30] =  380;
  cost[10,12,30] =  260;
  cost[10,13,30] =  314;
  cost[10,14,30] =  149;
  cost[10,15,30] =  239;
  cost[10,16,30] =  186;
  cost[10,17,30] =  172;
  cost[10,18,30] =  297;
  cost[10,19,30] =  61;
  cost[10,20,30] =  363;
  cost[10,21,30] =  261;
  cost[11,0,30] =  19;
  cost[11,1,30] =  407;
  cost[11,2,30] =  478;
  cost[11,3,30] =  471;
  cost[11,4,30] =  435;
  cost[11,5,30] =  191;
  cost[11,6,30] =  2;
  cost[11,7,30] =  285;
  cost[11,8,30] =  23;
  cost[11,9,30] =  158;
  cost[11,10,30] =  380;
  cost[11,11,30] =  0;
  cost[11,12,30] =  220;
  cost[11,13,30] =  281;
  cost[11,14,30] =  411;
  cost[11,15,30] =  399;
  cost[11,16,30] =  370;
  cost[11,17,30] =  39;
  cost[11,18,30] =  216;
  cost[11,19,30] =  45;
  cost[11,20,30] =  245;
  cost[11,21,30] =  483;
  cost[12,0,30] =  465;
  cost[12,1,30] =  109;
  cost[12,2,30] =  85;
  cost[12,3,30] =  147;
  cost[12,4,30] =  432;
  cost[12,5,30] =  136;
  cost[12,6,30] =  167;
  cost[12,7,30] =  103;
  cost[12,8,30] =  58;
  cost[12,9,30] =  205;
  cost[12,10,30] =  260;
  cost[12,11,30] =  220;
  cost[12,12,30] =  0;
  cost[12,13,30] =  252;
  cost[12,14,30] =  370;
  cost[12,15,30] =  295;
  cost[12,16,30] =  307;
  cost[12,17,30] =  19;
  cost[12,18,30] =  242;
  cost[12,19,30] =  235;
  cost[12,20,30] =  151;
  cost[12,21,30] =  138;
  cost[13,0,30] =  344;
  cost[13,1,30] =  448;
  cost[13,2,30] =  337;
  cost[13,3,30] =  47;
  cost[13,4,30] =  312;
  cost[13,5,30] =  409;
  cost[13,6,30] =  389;
  cost[13,7,30] =  88;
  cost[13,8,30] =  359;
  cost[13,9,30] =  267;
  cost[13,10,30] =  314;
  cost[13,11,30] =  281;
  cost[13,12,30] =  252;
  cost[13,13,30] =  0;
  cost[13,14,30] =  465;
  cost[13,15,30] =  287;
  cost[13,16,30] =  250;
  cost[13,17,30] =  168;
  cost[13,18,30] =  460;
  cost[13,19,30] =  64;
  cost[13,20,30] =  230;
  cost[13,21,30] =  340;
  cost[14,0,30] =  305;
  cost[14,1,30] =  52;
  cost[14,2,30] =  372;
  cost[14,3,30] =  94;
  cost[14,4,30] =  396;
  cost[14,5,30] =  246;
  cost[14,6,30] =  76;
  cost[14,7,30] =  47;
  cost[14,8,30] =  190;
  cost[14,9,30] =  322;
  cost[14,10,30] =  149;
  cost[14,11,30] =  411;
  cost[14,12,30] =  370;
  cost[14,13,30] =  465;
  cost[14,14,30] =  0;
  cost[14,15,30] =  243;
  cost[14,16,30] =  76;
  cost[14,17,30] =  123;
  cost[14,18,30] =  170;
  cost[14,19,30] =  476;
  cost[14,20,30] =  10;
  cost[14,21,30] =  210;
  cost[15,0,30] =  112;
  cost[15,1,30] =  120;
  cost[15,2,30] =  8;
  cost[15,3,30] =  294;
  cost[15,4,30] =  309;
  cost[15,5,30] =  142;
  cost[15,6,30] =  149;
  cost[15,7,30] =  246;
  cost[15,8,30] =  447;
  cost[15,9,30] =  7;
  cost[15,10,30] =  239;
  cost[15,11,30] =  399;
  cost[15,12,30] =  295;
  cost[15,13,30] =  287;
  cost[15,14,30] =  243;
  cost[15,15,30] =  0;
  cost[15,16,30] =  55;
  cost[15,17,30] =  455;
  cost[15,18,30] =  208;
  cost[15,19,30] =  424;
  cost[15,20,30] =  223;
  cost[15,21,30] =  95;
  cost[16,0,30] =  97;
  cost[16,1,30] =  20;
  cost[16,2,30] =  43;
  cost[16,3,30] =  291;
  cost[16,4,30] =  73;
  cost[16,5,30] =  414;
  cost[16,6,30] =  56;
  cost[16,7,30] =  19;
  cost[16,8,30] =  435;
  cost[16,9,30] =  370;
  cost[16,10,30] =  186;
  cost[16,11,30] =  370;
  cost[16,12,30] =  307;
  cost[16,13,30] =  250;
  cost[16,14,30] =  76;
  cost[16,15,30] =  55;
  cost[16,16,30] =  0;
  cost[16,17,30] =  46;
  cost[16,18,30] =  114;
  cost[16,19,30] =  477;
  cost[16,20,30] =  282;
  cost[16,21,30] =  266;
  cost[17,0,30] =  439;
  cost[17,1,30] =  47;
  cost[17,2,30] =  63;
  cost[17,3,30] =  314;
  cost[17,4,30] =  466;
  cost[17,5,30] =  309;
  cost[17,6,30] =  447;
  cost[17,7,30] =  357;
  cost[17,8,30] =  340;
  cost[17,9,30] =  411;
  cost[17,10,30] =  172;
  cost[17,11,30] =  39;
  cost[17,12,30] =  19;
  cost[17,13,30] =  168;
  cost[17,14,30] =  123;
  cost[17,15,30] =  455;
  cost[17,16,30] =  46;
  cost[17,17,30] =  0;
  cost[17,18,30] =  293;
  cost[17,19,30] =  247;
  cost[17,20,30] =  420;
  cost[17,21,30] =  60;
  cost[18,0,30] =  438;
  cost[18,1,30] =  402;
  cost[18,2,30] =  276;
  cost[18,3,30] =  55;
  cost[18,4,30] =  151;
  cost[18,5,30] =  236;
  cost[18,6,30] =  322;
  cost[18,7,30] =  482;
  cost[18,8,30] =  20;
  cost[18,9,30] =  54;
  cost[18,10,30] =  297;
  cost[18,11,30] =  216;
  cost[18,12,30] =  242;
  cost[18,13,30] =  460;
  cost[18,14,30] =  170;
  cost[18,15,30] =  208;
  cost[18,16,30] =  114;
  cost[18,17,30] =  293;
  cost[18,18,30] =  0;
  cost[18,19,30] =  397;
  cost[18,20,30] =  125;
  cost[18,21,30] =  161;
  cost[19,0,30] =  247;
  cost[19,1,30] =  125;
  cost[19,2,30] =  321;
  cost[19,3,30] =  5;
  cost[19,4,30] =  371;
  cost[19,5,30] =  414;
  cost[19,6,30] =  69;
  cost[19,7,30] =  433;
  cost[19,8,30] =  398;
  cost[19,9,30] =  132;
  cost[19,10,30] =  61;
  cost[19,11,30] =  45;
  cost[19,12,30] =  235;
  cost[19,13,30] =  64;
  cost[19,14,30] =  476;
  cost[19,15,30] =  424;
  cost[19,16,30] =  477;
  cost[19,17,30] =  247;
  cost[19,18,30] =  397;
  cost[19,19,30] =  0;
  cost[19,20,30] =  450;
  cost[19,21,30] =  404;
  cost[20,0,30] =  373;
  cost[20,1,30] =  285;
  cost[20,2,30] =  444;
  cost[20,3,30] =  5;
  cost[20,4,30] =  173;
  cost[20,5,30] =  458;
  cost[20,6,30] =  197;
  cost[20,7,30] =  331;
  cost[20,8,30] =  179;
  cost[20,9,30] =  430;
  cost[20,10,30] =  363;
  cost[20,11,30] =  245;
  cost[20,12,30] =  151;
  cost[20,13,30] =  230;
  cost[20,14,30] =  10;
  cost[20,15,30] =  223;
  cost[20,16,30] =  282;
  cost[20,17,30] =  420;
  cost[20,18,30] =  125;
  cost[20,19,30] =  450;
  cost[20,20,30] =  0;
  cost[20,21,30] =  90;
  cost[21,0,30] =  303;
  cost[21,1,30] =  422;
  cost[21,2,30] =  361;
  cost[21,3,30] =  63;
  cost[21,4,30] =  12;
  cost[21,5,30] =  183;
  cost[21,6,30] =  121;
  cost[21,7,30] =  182;
  cost[21,8,30] =  89;
  cost[21,9,30] =  412;
  cost[21,10,30] =  261;
  cost[21,11,30] =  483;
  cost[21,12,30] =  138;
  cost[21,13,30] =  340;
  cost[21,14,30] =  210;
  cost[21,15,30] =  95;
  cost[21,16,30] =  266;
  cost[21,17,30] =  60;
  cost[21,18,30] =  161;
  cost[21,19,30] =  404;
  cost[21,20,30] =  90;
  cost[21,21,30] =  0;
  cost[0,0,31] =  0;
  cost[0,1,31] =  100;
  cost[0,2,31] =  302;
  cost[0,3,31] =  48;
  cost[0,4,31] =  155;
  cost[0,5,31] =  273;
  cost[0,6,31] =  257;
  cost[0,7,31] =  95;
  cost[0,8,31] =  13;
  cost[0,9,31] =  352;
  cost[0,10,31] =  331;
  cost[0,11,31] =  60;
  cost[0,12,31] =  467;
  cost[0,13,31] =  325;
  cost[0,14,31] =  342;
  cost[0,15,31] =  249;
  cost[0,16,31] =  457;
  cost[0,17,31] =  152;
  cost[0,18,31] =  12;
  cost[0,19,31] =  394;
  cost[0,20,31] =  212;
  cost[0,21,31] =  428;
  cost[1,0,31] =  100;
  cost[1,1,31] =  0;
  cost[1,2,31] =  337;
  cost[1,3,31] =  106;
  cost[1,4,31] =  76;
  cost[1,5,31] =  304;
  cost[1,6,31] =  27;
  cost[1,7,31] =  407;
  cost[1,8,31] =  394;
  cost[1,9,31] =  119;
  cost[1,10,31] =  246;
  cost[1,11,31] =  10;
  cost[1,12,31] =  421;
  cost[1,13,31] =  294;
  cost[1,14,31] =  166;
  cost[1,15,31] =  210;
  cost[1,16,31] =  68;
  cost[1,17,31] =  262;
  cost[1,18,31] =  224;
  cost[1,19,31] =  420;
  cost[1,20,31] =  110;
  cost[1,21,31] =  284;
  cost[2,0,31] =  302;
  cost[2,1,31] =  337;
  cost[2,2,31] =  0;
  cost[2,3,31] =  435;
  cost[2,4,31] =  142;
  cost[2,5,31] =  170;
  cost[2,6,31] =  409;
  cost[2,7,31] =  294;
  cost[2,8,31] =  183;
  cost[2,9,31] =  319;
  cost[2,10,31] =  23;
  cost[2,11,31] =  127;
  cost[2,12,31] =  142;
  cost[2,13,31] =  361;
  cost[2,14,31] =  234;
  cost[2,15,31] =  219;
  cost[2,16,31] =  181;
  cost[2,17,31] =  261;
  cost[2,18,31] =  142;
  cost[2,19,31] =  92;
  cost[2,20,31] =  380;
  cost[2,21,31] =  388;
  cost[3,0,31] =  48;
  cost[3,1,31] =  106;
  cost[3,2,31] =  435;
  cost[3,3,31] =  0;
  cost[3,4,31] =  317;
  cost[3,5,31] =  199;
  cost[3,6,31] =  270;
  cost[3,7,31] =  44;
  cost[3,8,31] =  268;
  cost[3,9,31] =  49;
  cost[3,10,31] =  268;
  cost[3,11,31] =  205;
  cost[3,12,31] =  159;
  cost[3,13,31] =  68;
  cost[3,14,31] =  125;
  cost[3,15,31] =  111;
  cost[3,16,31] =  210;
  cost[3,17,31] =  295;
  cost[3,18,31] =  36;
  cost[3,19,31] =  21;
  cost[3,20,31] =  478;
  cost[3,21,31] =  356;
  cost[4,0,31] =  155;
  cost[4,1,31] =  76;
  cost[4,2,31] =  142;
  cost[4,3,31] =  317;
  cost[4,4,31] =  0;
  cost[4,5,31] =  122;
  cost[4,6,31] =  14;
  cost[4,7,31] =  405;
  cost[4,8,31] =  356;
  cost[4,9,31] =  233;
  cost[4,10,31] =  103;
  cost[4,11,31] =  133;
  cost[4,12,31] =  376;
  cost[4,13,31] =  196;
  cost[4,14,31] =  30;
  cost[4,15,31] =  281;
  cost[4,16,31] =  299;
  cost[4,17,31] =  347;
  cost[4,18,31] =  481;
  cost[4,19,31] =  86;
  cost[4,20,31] =  392;
  cost[4,21,31] =  265;
  cost[5,0,31] =  273;
  cost[5,1,31] =  304;
  cost[5,2,31] =  170;
  cost[5,3,31] =  199;
  cost[5,4,31] =  122;
  cost[5,5,31] =  0;
  cost[5,6,31] =  176;
  cost[5,7,31] =  470;
  cost[5,8,31] =  294;
  cost[5,9,31] =  245;
  cost[5,10,31] =  112;
  cost[5,11,31] =  406;
  cost[5,12,31] =  456;
  cost[5,13,31] =  407;
  cost[5,14,31] =  442;
  cost[5,15,31] =  477;
  cost[5,16,31] =  402;
  cost[5,17,31] =  315;
  cost[5,18,31] =  38;
  cost[5,19,31] =  40;
  cost[5,20,31] =  329;
  cost[5,21,31] =  443;
  cost[6,0,31] =  257;
  cost[6,1,31] =  27;
  cost[6,2,31] =  409;
  cost[6,3,31] =  270;
  cost[6,4,31] =  14;
  cost[6,5,31] =  176;
  cost[6,6,31] =  0;
  cost[6,7,31] =  79;
  cost[6,8,31] =  63;
  cost[6,9,31] =  46;
  cost[6,10,31] =  456;
  cost[6,11,31] =  259;
  cost[6,12,31] =  77;
  cost[6,13,31] =  253;
  cost[6,14,31] =  75;
  cost[6,15,31] =  424;
  cost[6,16,31] =  251;
  cost[6,17,31] =  161;
  cost[6,18,31] =  333;
  cost[6,19,31] =  32;
  cost[6,20,31] =  296;
  cost[6,21,31] =  26;
  cost[7,0,31] =  95;
  cost[7,1,31] =  407;
  cost[7,2,31] =  294;
  cost[7,3,31] =  44;
  cost[7,4,31] =  405;
  cost[7,5,31] =  470;
  cost[7,6,31] =  79;
  cost[7,7,31] =  0;
  cost[7,8,31] =  107;
  cost[7,9,31] =  271;
  cost[7,10,31] =  131;
  cost[7,11,31] =  29;
  cost[7,12,31] =  243;
  cost[7,13,31] =  55;
  cost[7,14,31] =  472;
  cost[7,15,31] =  237;
  cost[7,16,31] =  457;
  cost[7,17,31] =  303;
  cost[7,18,31] =  275;
  cost[7,19,31] =  14;
  cost[7,20,31] =  149;
  cost[7,21,31] =  235;
  cost[8,0,31] =  13;
  cost[8,1,31] =  394;
  cost[8,2,31] =  183;
  cost[8,3,31] =  268;
  cost[8,4,31] =  356;
  cost[8,5,31] =  294;
  cost[8,6,31] =  63;
  cost[8,7,31] =  107;
  cost[8,8,31] =  0;
  cost[8,9,31] =  229;
  cost[8,10,31] =  299;
  cost[8,11,31] =  458;
  cost[8,12,31] =  201;
  cost[8,13,31] =  74;
  cost[8,14,31] =  51;
  cost[8,15,31] =  455;
  cost[8,16,31] =  149;
  cost[8,17,31] =  476;
  cost[8,18,31] =  222;
  cost[8,19,31] =  310;
  cost[8,20,31] =  325;
  cost[8,21,31] =  255;
  cost[9,0,31] =  352;
  cost[9,1,31] =  119;
  cost[9,2,31] =  319;
  cost[9,3,31] =  49;
  cost[9,4,31] =  233;
  cost[9,5,31] =  245;
  cost[9,6,31] =  46;
  cost[9,7,31] =  271;
  cost[9,8,31] =  229;
  cost[9,9,31] =  0;
  cost[9,10,31] =  351;
  cost[9,11,31] =  274;
  cost[9,12,31] =  230;
  cost[9,13,31] =  139;
  cost[9,14,31] =  405;
  cost[9,15,31] =  260;
  cost[9,16,31] =  383;
  cost[9,17,31] =  460;
  cost[9,18,31] =  249;
  cost[9,19,31] =  136;
  cost[9,20,31] =  434;
  cost[9,21,31] =  68;
  cost[10,0,31] =  331;
  cost[10,1,31] =  246;
  cost[10,2,31] =  23;
  cost[10,3,31] =  268;
  cost[10,4,31] =  103;
  cost[10,5,31] =  112;
  cost[10,6,31] =  456;
  cost[10,7,31] =  131;
  cost[10,8,31] =  299;
  cost[10,9,31] =  351;
  cost[10,10,31] =  0;
  cost[10,11,31] =  449;
  cost[10,12,31] =  218;
  cost[10,13,31] =  164;
  cost[10,14,31] =  376;
  cost[10,15,31] =  447;
  cost[10,16,31] =  463;
  cost[10,17,31] =  350;
  cost[10,18,31] =  165;
  cost[10,19,31] =  53;
  cost[10,20,31] =  401;
  cost[10,21,31] =  137;
  cost[11,0,31] =  60;
  cost[11,1,31] =  10;
  cost[11,2,31] =  127;
  cost[11,3,31] =  205;
  cost[11,4,31] =  133;
  cost[11,5,31] =  406;
  cost[11,6,31] =  259;
  cost[11,7,31] =  29;
  cost[11,8,31] =  458;
  cost[11,9,31] =  274;
  cost[11,10,31] =  449;
  cost[11,11,31] =  0;
  cost[11,12,31] =  394;
  cost[11,13,31] =  359;
  cost[11,14,31] =  30;
  cost[11,15,31] =  235;
  cost[11,16,31] =  131;
  cost[11,17,31] =  153;
  cost[11,18,31] =  103;
  cost[11,19,31] =  405;
  cost[11,20,31] =  384;
  cost[11,21,31] =  242;
  cost[12,0,31] =  467;
  cost[12,1,31] =  421;
  cost[12,2,31] =  142;
  cost[12,3,31] =  159;
  cost[12,4,31] =  376;
  cost[12,5,31] =  456;
  cost[12,6,31] =  77;
  cost[12,7,31] =  243;
  cost[12,8,31] =  201;
  cost[12,9,31] =  230;
  cost[12,10,31] =  218;
  cost[12,11,31] =  394;
  cost[12,12,31] =  0;
  cost[12,13,31] =  161;
  cost[12,14,31] =  141;
  cost[12,15,31] =  304;
  cost[12,16,31] =  410;
  cost[12,17,31] =  278;
  cost[12,18,31] =  254;
  cost[12,19,31] =  479;
  cost[12,20,31] =  206;
  cost[12,21,31] =  219;
  cost[13,0,31] =  325;
  cost[13,1,31] =  294;
  cost[13,2,31] =  361;
  cost[13,3,31] =  68;
  cost[13,4,31] =  196;
  cost[13,5,31] =  407;
  cost[13,6,31] =  253;
  cost[13,7,31] =  55;
  cost[13,8,31] =  74;
  cost[13,9,31] =  139;
  cost[13,10,31] =  164;
  cost[13,11,31] =  359;
  cost[13,12,31] =  161;
  cost[13,13,31] =  0;
  cost[13,14,31] =  371;
  cost[13,15,31] =  112;
  cost[13,16,31] =  177;
  cost[13,17,31] =  350;
  cost[13,18,31] =  463;
  cost[13,19,31] =  343;
  cost[13,20,31] =  404;
  cost[13,21,31] =  380;
  cost[14,0,31] =  342;
  cost[14,1,31] =  166;
  cost[14,2,31] =  234;
  cost[14,3,31] =  125;
  cost[14,4,31] =  30;
  cost[14,5,31] =  442;
  cost[14,6,31] =  75;
  cost[14,7,31] =  472;
  cost[14,8,31] =  51;
  cost[14,9,31] =  405;
  cost[14,10,31] =  376;
  cost[14,11,31] =  30;
  cost[14,12,31] =  141;
  cost[14,13,31] =  371;
  cost[14,14,31] =  0;
  cost[14,15,31] =  123;
  cost[14,16,31] =  291;
  cost[14,17,31] =  356;
  cost[14,18,31] =  154;
  cost[14,19,31] =  42;
  cost[14,20,31] =  3;
  cost[14,21,31] =  308;
  cost[15,0,31] =  249;
  cost[15,1,31] =  210;
  cost[15,2,31] =  219;
  cost[15,3,31] =  111;
  cost[15,4,31] =  281;
  cost[15,5,31] =  477;
  cost[15,6,31] =  424;
  cost[15,7,31] =  237;
  cost[15,8,31] =  455;
  cost[15,9,31] =  260;
  cost[15,10,31] =  447;
  cost[15,11,31] =  235;
  cost[15,12,31] =  304;
  cost[15,13,31] =  112;
  cost[15,14,31] =  123;
  cost[15,15,31] =  0;
  cost[15,16,31] =  408;
  cost[15,17,31] =  209;
  cost[15,18,31] =  387;
  cost[15,19,31] =  251;
  cost[15,20,31] =  370;
  cost[15,21,31] =  45;
  cost[16,0,31] =  457;
  cost[16,1,31] =  68;
  cost[16,2,31] =  181;
  cost[16,3,31] =  210;
  cost[16,4,31] =  299;
  cost[16,5,31] =  402;
  cost[16,6,31] =  251;
  cost[16,7,31] =  457;
  cost[16,8,31] =  149;
  cost[16,9,31] =  383;
  cost[16,10,31] =  463;
  cost[16,11,31] =  131;
  cost[16,12,31] =  410;
  cost[16,13,31] =  177;
  cost[16,14,31] =  291;
  cost[16,15,31] =  408;
  cost[16,16,31] =  0;
  cost[16,17,31] =  296;
  cost[16,18,31] =  323;
  cost[16,19,31] =  326;
  cost[16,20,31] =  292;
  cost[16,21,31] =  46;
  cost[17,0,31] =  152;
  cost[17,1,31] =  262;
  cost[17,2,31] =  261;
  cost[17,3,31] =  295;
  cost[17,4,31] =  347;
  cost[17,5,31] =  315;
  cost[17,6,31] =  161;
  cost[17,7,31] =  303;
  cost[17,8,31] =  476;
  cost[17,9,31] =  460;
  cost[17,10,31] =  350;
  cost[17,11,31] =  153;
  cost[17,12,31] =  278;
  cost[17,13,31] =  350;
  cost[17,14,31] =  356;
  cost[17,15,31] =  209;
  cost[17,16,31] =  296;
  cost[17,17,31] =  0;
  cost[17,18,31] =  21;
  cost[17,19,31] =  417;
  cost[17,20,31] =  175;
  cost[17,21,31] =  199;
  cost[18,0,31] =  12;
  cost[18,1,31] =  224;
  cost[18,2,31] =  142;
  cost[18,3,31] =  36;
  cost[18,4,31] =  481;
  cost[18,5,31] =  38;
  cost[18,6,31] =  333;
  cost[18,7,31] =  275;
  cost[18,8,31] =  222;
  cost[18,9,31] =  249;
  cost[18,10,31] =  165;
  cost[18,11,31] =  103;
  cost[18,12,31] =  254;
  cost[18,13,31] =  463;
  cost[18,14,31] =  154;
  cost[18,15,31] =  387;
  cost[18,16,31] =  323;
  cost[18,17,31] =  21;
  cost[18,18,31] =  0;
  cost[18,19,31] =  154;
  cost[18,20,31] =  58;
  cost[18,21,31] =  204;
  cost[19,0,31] =  394;
  cost[19,1,31] =  420;
  cost[19,2,31] =  92;
  cost[19,3,31] =  21;
  cost[19,4,31] =  86;
  cost[19,5,31] =  40;
  cost[19,6,31] =  32;
  cost[19,7,31] =  14;
  cost[19,8,31] =  310;
  cost[19,9,31] =  136;
  cost[19,10,31] =  53;
  cost[19,11,31] =  405;
  cost[19,12,31] =  479;
  cost[19,13,31] =  343;
  cost[19,14,31] =  42;
  cost[19,15,31] =  251;
  cost[19,16,31] =  326;
  cost[19,17,31] =  417;
  cost[19,18,31] =  154;
  cost[19,19,31] =  0;
  cost[19,20,31] =  54;
  cost[19,21,31] =  328;
  cost[20,0,31] =  212;
  cost[20,1,31] =  110;
  cost[20,2,31] =  380;
  cost[20,3,31] =  478;
  cost[20,4,31] =  392;
  cost[20,5,31] =  329;
  cost[20,6,31] =  296;
  cost[20,7,31] =  149;
  cost[20,8,31] =  325;
  cost[20,9,31] =  434;
  cost[20,10,31] =  401;
  cost[20,11,31] =  384;
  cost[20,12,31] =  206;
  cost[20,13,31] =  404;
  cost[20,14,31] =  3;
  cost[20,15,31] =  370;
  cost[20,16,31] =  292;
  cost[20,17,31] =  175;
  cost[20,18,31] =  58;
  cost[20,19,31] =  54;
  cost[20,20,31] =  0;
  cost[20,21,31] =  410;
  cost[21,0,31] =  428;
  cost[21,1,31] =  284;
  cost[21,2,31] =  388;
  cost[21,3,31] =  356;
  cost[21,4,31] =  265;
  cost[21,5,31] =  443;
  cost[21,6,31] =  26;
  cost[21,7,31] =  235;
  cost[21,8,31] =  255;
  cost[21,9,31] =  68;
  cost[21,10,31] =  137;
  cost[21,11,31] =  242;
  cost[21,12,31] =  219;
  cost[21,13,31] =  380;
  cost[21,14,31] =  308;
  cost[21,15,31] =  45;
  cost[21,16,31] =  46;
  cost[21,17,31] =  199;
  cost[21,18,31] =  204;
  cost[21,19,31] =  328;
  cost[21,20,31] =  410;
  cost[21,21,31] =  0;
  cost[0,0,32] =  0;
  cost[0,1,32] =  414;
  cost[0,2,32] =  307;
  cost[0,3,32] =  46;
  cost[0,4,32] =  338;
  cost[0,5,32] =  32;
  cost[0,6,32] =  434;
  cost[0,7,32] =  106;
  cost[0,8,32] =  402;
  cost[0,9,32] =  479;
  cost[0,10,32] =  178;
  cost[0,11,32] =  215;
  cost[0,12,32] =  319;
  cost[0,13,32] =  21;
  cost[0,14,32] =  23;
  cost[0,15,32] =  365;
  cost[0,16,32] =  84;
  cost[0,17,32] =  45;
  cost[0,18,32] =  298;
  cost[0,19,32] =  259;
  cost[0,20,32] =  244;
  cost[0,21,32] =  98;
  cost[1,0,32] =  414;
  cost[1,1,32] =  0;
  cost[1,2,32] =  303;
  cost[1,3,32] =  303;
  cost[1,4,32] =  464;
  cost[1,5,32] =  357;
  cost[1,6,32] =  147;
  cost[1,7,32] =  323;
  cost[1,8,32] =  284;
  cost[1,9,32] =  146;
  cost[1,10,32] =  224;
  cost[1,11,32] =  215;
  cost[1,12,32] =  453;
  cost[1,13,32] =  270;
  cost[1,14,32] =  69;
  cost[1,15,32] =  1;
  cost[1,16,32] =  220;
  cost[1,17,32] =  176;
  cost[1,18,32] =  404;
  cost[1,19,32] =  216;
  cost[1,20,32] =  354;
  cost[1,21,32] =  135;
  cost[2,0,32] =  307;
  cost[2,1,32] =  303;
  cost[2,2,32] =  0;
  cost[2,3,32] =  376;
  cost[2,4,32] =  159;
  cost[2,5,32] =  416;
  cost[2,6,32] =  460;
  cost[2,7,32] =  204;
  cost[2,8,32] =  231;
  cost[2,9,32] =  235;
  cost[2,10,32] =  449;
  cost[2,11,32] =  330;
  cost[2,12,32] =  165;
  cost[2,13,32] =  268;
  cost[2,14,32] =  149;
  cost[2,15,32] =  146;
  cost[2,16,32] =  142;
  cost[2,17,32] =  297;
  cost[2,18,32] =  469;
  cost[2,19,32] =  427;
  cost[2,20,32] =  444;
  cost[2,21,32] =  210;
  cost[3,0,32] =  46;
  cost[3,1,32] =  303;
  cost[3,2,32] =  376;
  cost[3,3,32] =  0;
  cost[3,4,32] =  413;
  cost[3,5,32] =  480;
  cost[3,6,32] =  228;
  cost[3,7,32] =  415;
  cost[3,8,32] =  217;
  cost[3,9,32] =  405;
  cost[3,10,32] =  336;
  cost[3,11,32] =  434;
  cost[3,12,32] =  276;
  cost[3,13,32] =  472;
  cost[3,14,32] =  1;
  cost[3,15,32] =  168;
  cost[3,16,32] =  147;
  cost[3,17,32] =  418;
  cost[3,18,32] =  144;
  cost[3,19,32] =  352;
  cost[3,20,32] =  165;
  cost[3,21,32] =  380;
  cost[4,0,32] =  338;
  cost[4,1,32] =  464;
  cost[4,2,32] =  159;
  cost[4,3,32] =  413;
  cost[4,4,32] =  0;
  cost[4,5,32] =  12;
  cost[4,6,32] =  62;
  cost[4,7,32] =  102;
  cost[4,8,32] =  161;
  cost[4,9,32] =  208;
  cost[4,10,32] =  245;
  cost[4,11,32] =  459;
  cost[4,12,32] =  194;
  cost[4,13,32] =  189;
  cost[4,14,32] =  419;
  cost[4,15,32] =  404;
  cost[4,16,32] =  347;
  cost[4,17,32] =  349;
  cost[4,18,32] =  401;
  cost[4,19,32] =  92;
  cost[4,20,32] =  281;
  cost[4,21,32] =  135;
  cost[5,0,32] =  32;
  cost[5,1,32] =  357;
  cost[5,2,32] =  416;
  cost[5,3,32] =  480;
  cost[5,4,32] =  12;
  cost[5,5,32] =  0;
  cost[5,6,32] =  133;
  cost[5,7,32] =  85;
  cost[5,8,32] =  289;
  cost[5,9,32] =  121;
  cost[5,10,32] =  86;
  cost[5,11,32] =  458;
  cost[5,12,32] =  269;
  cost[5,13,32] =  21;
  cost[5,14,32] =  119;
  cost[5,15,32] =  138;
  cost[5,16,32] =  186;
  cost[5,17,32] =  15;
  cost[5,18,32] =  456;
  cost[5,19,32] =  199;
  cost[5,20,32] =  78;
  cost[5,21,32] =  75;
  cost[6,0,32] =  434;
  cost[6,1,32] =  147;
  cost[6,2,32] =  460;
  cost[6,3,32] =  228;
  cost[6,4,32] =  62;
  cost[6,5,32] =  133;
  cost[6,6,32] =  0;
  cost[6,7,32] =  287;
  cost[6,8,32] =  321;
  cost[6,9,32] =  336;
  cost[6,10,32] =  482;
  cost[6,11,32] =  26;
  cost[6,12,32] =  271;
  cost[6,13,32] =  402;
  cost[6,14,32] =  374;
  cost[6,15,32] =  137;
  cost[6,16,32] =  320;
  cost[6,17,32] =  466;
  cost[6,18,32] =  418;
  cost[6,19,32] =  455;
  cost[6,20,32] =  480;
  cost[6,21,32] =  68;
  cost[7,0,32] =  106;
  cost[7,1,32] =  323;
  cost[7,2,32] =  204;
  cost[7,3,32] =  415;
  cost[7,4,32] =  102;
  cost[7,5,32] =  85;
  cost[7,6,32] =  287;
  cost[7,7,32] =  0;
  cost[7,8,32] =  286;
  cost[7,9,32] =  190;
  cost[7,10,32] =  143;
  cost[7,11,32] =  260;
  cost[7,12,32] =  459;
  cost[7,13,32] =  164;
  cost[7,14,32] =  379;
  cost[7,15,32] =  113;
  cost[7,16,32] =  351;
  cost[7,17,32] =  395;
  cost[7,18,32] =  86;
  cost[7,19,32] =  67;
  cost[7,20,32] =  473;
  cost[7,21,32] =  162;
  cost[8,0,32] =  402;
  cost[8,1,32] =  284;
  cost[8,2,32] =  231;
  cost[8,3,32] =  217;
  cost[8,4,32] =  161;
  cost[8,5,32] =  289;
  cost[8,6,32] =  321;
  cost[8,7,32] =  286;
  cost[8,8,32] =  0;
  cost[8,9,32] =  276;
  cost[8,10,32] =  483;
  cost[8,11,32] =  280;
  cost[8,12,32] =  274;
  cost[8,13,32] =  25;
  cost[8,14,32] =  68;
  cost[8,15,32] =  193;
  cost[8,16,32] =  400;
  cost[8,17,32] =  205;
  cost[8,18,32] =  30;
  cost[8,19,32] =  382;
  cost[8,20,32] =  139;
  cost[8,21,32] =  2;
  cost[9,0,32] =  479;
  cost[9,1,32] =  146;
  cost[9,2,32] =  235;
  cost[9,3,32] =  405;
  cost[9,4,32] =  208;
  cost[9,5,32] =  121;
  cost[9,6,32] =  336;
  cost[9,7,32] =  190;
  cost[9,8,32] =  276;
  cost[9,9,32] =  0;
  cost[9,10,32] =  208;
  cost[9,11,32] =  59;
  cost[9,12,32] =  181;
  cost[9,13,32] =  398;
  cost[9,14,32] =  202;
  cost[9,15,32] =  441;
  cost[9,16,32] =  373;
  cost[9,17,32] =  367;
  cost[9,18,32] =  337;
  cost[9,19,32] =  3;
  cost[9,20,32] =  235;
  cost[9,21,32] =  248;
  cost[10,0,32] =  178;
  cost[10,1,32] =  224;
  cost[10,2,32] =  449;
  cost[10,3,32] =  336;
  cost[10,4,32] =  245;
  cost[10,5,32] =  86;
  cost[10,6,32] =  482;
  cost[10,7,32] =  143;
  cost[10,8,32] =  483;
  cost[10,9,32] =  208;
  cost[10,10,32] =  0;
  cost[10,11,32] =  302;
  cost[10,12,32] =  237;
  cost[10,13,32] =  252;
  cost[10,14,32] =  246;
  cost[10,15,32] =  30;
  cost[10,16,32] =  251;
  cost[10,17,32] =  43;
  cost[10,18,32] =  305;
  cost[10,19,32] =  277;
  cost[10,20,32] =  111;
  cost[10,21,32] =  15;
  cost[11,0,32] =  215;
  cost[11,1,32] =  215;
  cost[11,2,32] =  330;
  cost[11,3,32] =  434;
  cost[11,4,32] =  459;
  cost[11,5,32] =  458;
  cost[11,6,32] =  26;
  cost[11,7,32] =  260;
  cost[11,8,32] =  280;
  cost[11,9,32] =  59;
  cost[11,10,32] =  302;
  cost[11,11,32] =  0;
  cost[11,12,32] =  316;
  cost[11,13,32] =  45;
  cost[11,14,32] =  92;
  cost[11,15,32] =  456;
  cost[11,16,32] =  47;
  cost[11,17,32] =  471;
  cost[11,18,32] =  180;
  cost[11,19,32] =  106;
  cost[11,20,32] =  169;
  cost[11,21,32] =  94;
  cost[12,0,32] =  319;
  cost[12,1,32] =  453;
  cost[12,2,32] =  165;
  cost[12,3,32] =  276;
  cost[12,4,32] =  194;
  cost[12,5,32] =  269;
  cost[12,6,32] =  271;
  cost[12,7,32] =  459;
  cost[12,8,32] =  274;
  cost[12,9,32] =  181;
  cost[12,10,32] =  237;
  cost[12,11,32] =  316;
  cost[12,12,32] =  0;
  cost[12,13,32] =  127;
  cost[12,14,32] =  468;
  cost[12,15,32] =  193;
  cost[12,16,32] =  464;
  cost[12,17,32] =  472;
  cost[12,18,32] =  429;
  cost[12,19,32] =  228;
  cost[12,20,32] =  78;
  cost[12,21,32] =  247;
  cost[13,0,32] =  21;
  cost[13,1,32] =  270;
  cost[13,2,32] =  268;
  cost[13,3,32] =  472;
  cost[13,4,32] =  189;
  cost[13,5,32] =  21;
  cost[13,6,32] =  402;
  cost[13,7,32] =  164;
  cost[13,8,32] =  25;
  cost[13,9,32] =  398;
  cost[13,10,32] =  252;
  cost[13,11,32] =  45;
  cost[13,12,32] =  127;
  cost[13,13,32] =  0;
  cost[13,14,32] =  330;
  cost[13,15,32] =  10;
  cost[13,16,32] =  13;
  cost[13,17,32] =  98;
  cost[13,18,32] =  54;
  cost[13,19,32] =  318;
  cost[13,20,32] =  375;
  cost[13,21,32] =  165;
  cost[14,0,32] =  23;
  cost[14,1,32] =  69;
  cost[14,2,32] =  149;
  cost[14,3,32] =  1;
  cost[14,4,32] =  419;
  cost[14,5,32] =  119;
  cost[14,6,32] =  374;
  cost[14,7,32] =  379;
  cost[14,8,32] =  68;
  cost[14,9,32] =  202;
  cost[14,10,32] =  246;
  cost[14,11,32] =  92;
  cost[14,12,32] =  468;
  cost[14,13,32] =  330;
  cost[14,14,32] =  0;
  cost[14,15,32] =  85;
  cost[14,16,32] =  482;
  cost[14,17,32] =  379;
  cost[14,18,32] =  177;
  cost[14,19,32] =  455;
  cost[14,20,32] =  426;
  cost[14,21,32] =  165;
  cost[15,0,32] =  365;
  cost[15,1,32] =  1;
  cost[15,2,32] =  146;
  cost[15,3,32] =  168;
  cost[15,4,32] =  404;
  cost[15,5,32] =  138;
  cost[15,6,32] =  137;
  cost[15,7,32] =  113;
  cost[15,8,32] =  193;
  cost[15,9,32] =  441;
  cost[15,10,32] =  30;
  cost[15,11,32] =  456;
  cost[15,12,32] =  193;
  cost[15,13,32] =  10;
  cost[15,14,32] =  85;
  cost[15,15,32] =  0;
  cost[15,16,32] =  49;
  cost[15,17,32] =  334;
  cost[15,18,32] =  247;
  cost[15,19,32] =  358;
  cost[15,20,32] =  461;
  cost[15,21,32] =  231;
  cost[16,0,32] =  84;
  cost[16,1,32] =  220;
  cost[16,2,32] =  142;
  cost[16,3,32] =  147;
  cost[16,4,32] =  347;
  cost[16,5,32] =  186;
  cost[16,6,32] =  320;
  cost[16,7,32] =  351;
  cost[16,8,32] =  400;
  cost[16,9,32] =  373;
  cost[16,10,32] =  251;
  cost[16,11,32] =  47;
  cost[16,12,32] =  464;
  cost[16,13,32] =  13;
  cost[16,14,32] =  482;
  cost[16,15,32] =  49;
  cost[16,16,32] =  0;
  cost[16,17,32] =  441;
  cost[16,18,32] =  220;
  cost[16,19,32] =  12;
  cost[16,20,32] =  186;
  cost[16,21,32] =  298;
  cost[17,0,32] =  45;
  cost[17,1,32] =  176;
  cost[17,2,32] =  297;
  cost[17,3,32] =  418;
  cost[17,4,32] =  349;
  cost[17,5,32] =  15;
  cost[17,6,32] =  466;
  cost[17,7,32] =  395;
  cost[17,8,32] =  205;
  cost[17,9,32] =  367;
  cost[17,10,32] =  43;
  cost[17,11,32] =  471;
  cost[17,12,32] =  472;
  cost[17,13,32] =  98;
  cost[17,14,32] =  379;
  cost[17,15,32] =  334;
  cost[17,16,32] =  441;
  cost[17,17,32] =  0;
  cost[17,18,32] =  168;
  cost[17,19,32] =  145;
  cost[17,20,32] =  271;
  cost[17,21,32] =  181;
  cost[18,0,32] =  298;
  cost[18,1,32] =  404;
  cost[18,2,32] =  469;
  cost[18,3,32] =  144;
  cost[18,4,32] =  401;
  cost[18,5,32] =  456;
  cost[18,6,32] =  418;
  cost[18,7,32] =  86;
  cost[18,8,32] =  30;
  cost[18,9,32] =  337;
  cost[18,10,32] =  305;
  cost[18,11,32] =  180;
  cost[18,12,32] =  429;
  cost[18,13,32] =  54;
  cost[18,14,32] =  177;
  cost[18,15,32] =  247;
  cost[18,16,32] =  220;
  cost[18,17,32] =  168;
  cost[18,18,32] =  0;
  cost[18,19,32] =  325;
  cost[18,20,32] =  16;
  cost[18,21,32] =  136;
  cost[19,0,32] =  259;
  cost[19,1,32] =  216;
  cost[19,2,32] =  427;
  cost[19,3,32] =  352;
  cost[19,4,32] =  92;
  cost[19,5,32] =  199;
  cost[19,6,32] =  455;
  cost[19,7,32] =  67;
  cost[19,8,32] =  382;
  cost[19,9,32] =  3;
  cost[19,10,32] =  277;
  cost[19,11,32] =  106;
  cost[19,12,32] =  228;
  cost[19,13,32] =  318;
  cost[19,14,32] =  455;
  cost[19,15,32] =  358;
  cost[19,16,32] =  12;
  cost[19,17,32] =  145;
  cost[19,18,32] =  325;
  cost[19,19,32] =  0;
  cost[19,20,32] =  350;
  cost[19,21,32] =  221;
  cost[20,0,32] =  244;
  cost[20,1,32] =  354;
  cost[20,2,32] =  444;
  cost[20,3,32] =  165;
  cost[20,4,32] =  281;
  cost[20,5,32] =  78;
  cost[20,6,32] =  480;
  cost[20,7,32] =  473;
  cost[20,8,32] =  139;
  cost[20,9,32] =  235;
  cost[20,10,32] =  111;
  cost[20,11,32] =  169;
  cost[20,12,32] =  78;
  cost[20,13,32] =  375;
  cost[20,14,32] =  426;
  cost[20,15,32] =  461;
  cost[20,16,32] =  186;
  cost[20,17,32] =  271;
  cost[20,18,32] =  16;
  cost[20,19,32] =  350;
  cost[20,20,32] =  0;
  cost[20,21,32] =  245;
  cost[21,0,32] =  98;
  cost[21,1,32] =  135;
  cost[21,2,32] =  210;
  cost[21,3,32] =  380;
  cost[21,4,32] =  135;
  cost[21,5,32] =  75;
  cost[21,6,32] =  68;
  cost[21,7,32] =  162;
  cost[21,8,32] =  2;
  cost[21,9,32] =  248;
  cost[21,10,32] =  15;
  cost[21,11,32] =  94;
  cost[21,12,32] =  247;
  cost[21,13,32] =  165;
  cost[21,14,32] =  165;
  cost[21,15,32] =  231;
  cost[21,16,32] =  298;
  cost[21,17,32] =  181;
  cost[21,18,32] =  136;
  cost[21,19,32] =  221;
  cost[21,20,32] =  245;
  cost[21,21,32] =  0;
  cost[0,0,33] =  0;
  cost[0,1,33] =  188;
  cost[0,2,33] =  80;
  cost[0,3,33] =  129;
  cost[0,4,33] =  237;
  cost[0,5,33] =  414;
  cost[0,6,33] =  376;
  cost[0,7,33] =  111;
  cost[0,8,33] =  391;
  cost[0,9,33] =  123;
  cost[0,10,33] =  179;
  cost[0,11,33] =  349;
  cost[0,12,33] =  343;
  cost[0,13,33] =  192;
  cost[0,14,33] =  51;
  cost[0,15,33] =  158;
  cost[0,16,33] =  452;
  cost[0,17,33] =  219;
  cost[0,18,33] =  304;
  cost[0,19,33] =  240;
  cost[0,20,33] =  401;
  cost[0,21,33] =  64;
  cost[1,0,33] =  188;
  cost[1,1,33] =  0;
  cost[1,2,33] =  418;
  cost[1,3,33] =  200;
  cost[1,4,33] =  89;
  cost[1,5,33] =  284;
  cost[1,6,33] =  422;
  cost[1,7,33] =  94;
  cost[1,8,33] =  46;
  cost[1,9,33] =  336;
  cost[1,10,33] =  71;
  cost[1,11,33] =  234;
  cost[1,12,33] =  416;
  cost[1,13,33] =  200;
  cost[1,14,33] =  471;
  cost[1,15,33] =  347;
  cost[1,16,33] =  92;
  cost[1,17,33] =  99;
  cost[1,18,33] =  254;
  cost[1,19,33] =  216;
  cost[1,20,33] =  278;
  cost[1,21,33] =  120;
  cost[2,0,33] =  80;
  cost[2,1,33] =  418;
  cost[2,2,33] =  0;
  cost[2,3,33] =  470;
  cost[2,4,33] =  171;
  cost[2,5,33] =  235;
  cost[2,6,33] =  439;
  cost[2,7,33] =  391;
  cost[2,8,33] =  55;
  cost[2,9,33] =  196;
  cost[2,10,33] =  309;
  cost[2,11,33] =  119;
  cost[2,12,33] =  278;
  cost[2,13,33] =  243;
  cost[2,14,33] =  320;
  cost[2,15,33] =  367;
  cost[2,16,33] =  44;
  cost[2,17,33] =  258;
  cost[2,18,33] =  461;
  cost[2,19,33] =  90;
  cost[2,20,33] =  111;
  cost[2,21,33] =  49;
  cost[3,0,33] =  129;
  cost[3,1,33] =  200;
  cost[3,2,33] =  470;
  cost[3,3,33] =  0;
  cost[3,4,33] =  44;
  cost[3,5,33] =  250;
  cost[3,6,33] =  311;
  cost[3,7,33] =  391;
  cost[3,8,33] =  342;
  cost[3,9,33] =  410;
  cost[3,10,33] =  162;
  cost[3,11,33] =  75;
  cost[3,12,33] =  205;
  cost[3,13,33] =  282;
  cost[3,14,33] =  152;
  cost[3,15,33] =  192;
  cost[3,16,33] =  453;
  cost[3,17,33] =  387;
  cost[3,18,33] =  148;
  cost[3,19,33] =  361;
  cost[3,20,33] =  443;
  cost[3,21,33] =  344;
  cost[4,0,33] =  237;
  cost[4,1,33] =  89;
  cost[4,2,33] =  171;
  cost[4,3,33] =  44;
  cost[4,4,33] =  0;
  cost[4,5,33] =  79;
  cost[4,6,33] =  138;
  cost[4,7,33] =  429;
  cost[4,8,33] =  399;
  cost[4,9,33] =  21;
  cost[4,10,33] =  473;
  cost[4,11,33] =  174;
  cost[4,12,33] =  483;
  cost[4,13,33] =  80;
  cost[4,14,33] =  285;
  cost[4,15,33] =  49;
  cost[4,16,33] =  404;
  cost[4,17,33] =  330;
  cost[4,18,33] =  299;
  cost[4,19,33] =  232;
  cost[4,20,33] =  238;
  cost[4,21,33] =  158;
  cost[5,0,33] =  414;
  cost[5,1,33] =  284;
  cost[5,2,33] =  235;
  cost[5,3,33] =  250;
  cost[5,4,33] =  79;
  cost[5,5,33] =  0;
  cost[5,6,33] =  400;
  cost[5,7,33] =  233;
  cost[5,8,33] =  364;
  cost[5,9,33] =  199;
  cost[5,10,33] =  386;
  cost[5,11,33] =  72;
  cost[5,12,33] =  169;
  cost[5,13,33] =  289;
  cost[5,14,33] =  220;
  cost[5,15,33] =  46;
  cost[5,16,33] =  249;
  cost[5,17,33] =  81;
  cost[5,18,33] =  233;
  cost[5,19,33] =  328;
  cost[5,20,33] =  219;
  cost[5,21,33] =  178;
  cost[6,0,33] =  376;
  cost[6,1,33] =  422;
  cost[6,2,33] =  439;
  cost[6,3,33] =  311;
  cost[6,4,33] =  138;
  cost[6,5,33] =  400;
  cost[6,6,33] =  0;
  cost[6,7,33] =  241;
  cost[6,8,33] =  168;
  cost[6,9,33] =  418;
  cost[6,10,33] =  241;
  cost[6,11,33] =  248;
  cost[6,12,33] =  220;
  cost[6,13,33] =  290;
  cost[6,14,33] =  169;
  cost[6,15,33] =  67;
  cost[6,16,33] =  106;
  cost[6,17,33] =  401;
  cost[6,18,33] =  305;
  cost[6,19,33] =  264;
  cost[6,20,33] =  76;
  cost[6,21,33] =  222;
  cost[7,0,33] =  111;
  cost[7,1,33] =  94;
  cost[7,2,33] =  391;
  cost[7,3,33] =  391;
  cost[7,4,33] =  429;
  cost[7,5,33] =  233;
  cost[7,6,33] =  241;
  cost[7,7,33] =  0;
  cost[7,8,33] =  441;
  cost[7,9,33] =  421;
  cost[7,10,33] =  400;
  cost[7,11,33] =  30;
  cost[7,12,33] =  107;
  cost[7,13,33] =  206;
  cost[7,14,33] =  251;
  cost[7,15,33] =  153;
  cost[7,16,33] =  456;
  cost[7,17,33] =  332;
  cost[7,18,33] =  386;
  cost[7,19,33] =  300;
  cost[7,20,33] =  68;
  cost[7,21,33] =  81;
  cost[8,0,33] =  391;
  cost[8,1,33] =  46;
  cost[8,2,33] =  55;
  cost[8,3,33] =  342;
  cost[8,4,33] =  399;
  cost[8,5,33] =  364;
  cost[8,6,33] =  168;
  cost[8,7,33] =  441;
  cost[8,8,33] =  0;
  cost[8,9,33] =  309;
  cost[8,10,33] =  250;
  cost[8,11,33] =  479;
  cost[8,12,33] =  67;
  cost[8,13,33] =  15;
  cost[8,14,33] =  216;
  cost[8,15,33] =  357;
  cost[8,16,33] =  184;
  cost[8,17,33] =  283;
  cost[8,18,33] =  464;
  cost[8,19,33] =  102;
  cost[8,20,33] =  104;
  cost[8,21,33] =  244;
  cost[9,0,33] =  123;
  cost[9,1,33] =  336;
  cost[9,2,33] =  196;
  cost[9,3,33] =  410;
  cost[9,4,33] =  21;
  cost[9,5,33] =  199;
  cost[9,6,33] =  418;
  cost[9,7,33] =  421;
  cost[9,8,33] =  309;
  cost[9,9,33] =  0;
  cost[9,10,33] =  326;
  cost[9,11,33] =  259;
  cost[9,12,33] =  137;
  cost[9,13,33] =  264;
  cost[9,14,33] =  176;
  cost[9,15,33] =  167;
  cost[9,16,33] =  371;
  cost[9,17,33] =  382;
  cost[9,18,33] =  418;
  cost[9,19,33] =  41;
  cost[9,20,33] =  354;
  cost[9,21,33] =  266;
  cost[10,0,33] =  179;
  cost[10,1,33] =  71;
  cost[10,2,33] =  309;
  cost[10,3,33] =  162;
  cost[10,4,33] =  473;
  cost[10,5,33] =  386;
  cost[10,6,33] =  241;
  cost[10,7,33] =  400;
  cost[10,8,33] =  250;
  cost[10,9,33] =  326;
  cost[10,10,33] =  0;
  cost[10,11,33] =  171;
  cost[10,12,33] =  335;
  cost[10,13,33] =  26;
  cost[10,14,33] =  232;
  cost[10,15,33] =  160;
  cost[10,16,33] =  276;
  cost[10,17,33] =  227;
  cost[10,18,33] =  227;
  cost[10,19,33] =  292;
  cost[10,20,33] =  443;
  cost[10,21,33] =  101;
  cost[11,0,33] =  349;
  cost[11,1,33] =  234;
  cost[11,2,33] =  119;
  cost[11,3,33] =  75;
  cost[11,4,33] =  174;
  cost[11,5,33] =  72;
  cost[11,6,33] =  248;
  cost[11,7,33] =  30;
  cost[11,8,33] =  479;
  cost[11,9,33] =  259;
  cost[11,10,33] =  171;
  cost[11,11,33] =  0;
  cost[11,12,33] =  243;
  cost[11,13,33] =  81;
  cost[11,14,33] =  95;
  cost[11,15,33] =  347;
  cost[11,16,33] =  326;
  cost[11,17,33] =  275;
  cost[11,18,33] =  190;
  cost[11,19,33] =  101;
  cost[11,20,33] =  412;
  cost[11,21,33] =  454;
  cost[12,0,33] =  343;
  cost[12,1,33] =  416;
  cost[12,2,33] =  278;
  cost[12,3,33] =  205;
  cost[12,4,33] =  483;
  cost[12,5,33] =  169;
  cost[12,6,33] =  220;
  cost[12,7,33] =  107;
  cost[12,8,33] =  67;
  cost[12,9,33] =  137;
  cost[12,10,33] =  335;
  cost[12,11,33] =  243;
  cost[12,12,33] =  0;
  cost[12,13,33] =  95;
  cost[12,14,33] =  341;
  cost[12,15,33] =  176;
  cost[12,16,33] =  30;
  cost[12,17,33] =  383;
  cost[12,18,33] =  47;
  cost[12,19,33] =  297;
  cost[12,20,33] =  327;
  cost[12,21,33] =  219;
  cost[13,0,33] =  192;
  cost[13,1,33] =  200;
  cost[13,2,33] =  243;
  cost[13,3,33] =  282;
  cost[13,4,33] =  80;
  cost[13,5,33] =  289;
  cost[13,6,33] =  290;
  cost[13,7,33] =  206;
  cost[13,8,33] =  15;
  cost[13,9,33] =  264;
  cost[13,10,33] =  26;
  cost[13,11,33] =  81;
  cost[13,12,33] =  95;
  cost[13,13,33] =  0;
  cost[13,14,33] =  353;
  cost[13,15,33] =  451;
  cost[13,16,33] =  309;
  cost[13,17,33] =  146;
  cost[13,18,33] =  195;
  cost[13,19,33] =  53;
  cost[13,20,33] =  438;
  cost[13,21,33] =  155;
  cost[14,0,33] =  51;
  cost[14,1,33] =  471;
  cost[14,2,33] =  320;
  cost[14,3,33] =  152;
  cost[14,4,33] =  285;
  cost[14,5,33] =  220;
  cost[14,6,33] =  169;
  cost[14,7,33] =  251;
  cost[14,8,33] =  216;
  cost[14,9,33] =  176;
  cost[14,10,33] =  232;
  cost[14,11,33] =  95;
  cost[14,12,33] =  341;
  cost[14,13,33] =  353;
  cost[14,14,33] =  0;
  cost[14,15,33] =  431;
  cost[14,16,33] =  398;
  cost[14,17,33] =  237;
  cost[14,18,33] =  43;
  cost[14,19,33] =  262;
  cost[14,20,33] =  79;
  cost[14,21,33] =  318;
  cost[15,0,33] =  158;
  cost[15,1,33] =  347;
  cost[15,2,33] =  367;
  cost[15,3,33] =  192;
  cost[15,4,33] =  49;
  cost[15,5,33] =  46;
  cost[15,6,33] =  67;
  cost[15,7,33] =  153;
  cost[15,8,33] =  357;
  cost[15,9,33] =  167;
  cost[15,10,33] =  160;
  cost[15,11,33] =  347;
  cost[15,12,33] =  176;
  cost[15,13,33] =  451;
  cost[15,14,33] =  431;
  cost[15,15,33] =  0;
  cost[15,16,33] =  181;
  cost[15,17,33] =  247;
  cost[15,18,33] =  423;
  cost[15,19,33] =  459;
  cost[15,20,33] =  343;
  cost[15,21,33] =  281;
  cost[16,0,33] =  452;
  cost[16,1,33] =  92;
  cost[16,2,33] =  44;
  cost[16,3,33] =  453;
  cost[16,4,33] =  404;
  cost[16,5,33] =  249;
  cost[16,6,33] =  106;
  cost[16,7,33] =  456;
  cost[16,8,33] =  184;
  cost[16,9,33] =  371;
  cost[16,10,33] =  276;
  cost[16,11,33] =  326;
  cost[16,12,33] =  30;
  cost[16,13,33] =  309;
  cost[16,14,33] =  398;
  cost[16,15,33] =  181;
  cost[16,16,33] =  0;
  cost[16,17,33] =  373;
  cost[16,18,33] =  180;
  cost[16,19,33] =  200;
  cost[16,20,33] =  187;
  cost[16,21,33] =  24;
  cost[17,0,33] =  219;
  cost[17,1,33] =  99;
  cost[17,2,33] =  258;
  cost[17,3,33] =  387;
  cost[17,4,33] =  330;
  cost[17,5,33] =  81;
  cost[17,6,33] =  401;
  cost[17,7,33] =  332;
  cost[17,8,33] =  283;
  cost[17,9,33] =  382;
  cost[17,10,33] =  227;
  cost[17,11,33] =  275;
  cost[17,12,33] =  383;
  cost[17,13,33] =  146;
  cost[17,14,33] =  237;
  cost[17,15,33] =  247;
  cost[17,16,33] =  373;
  cost[17,17,33] =  0;
  cost[17,18,33] =  336;
  cost[17,19,33] =  377;
  cost[17,20,33] =  387;
  cost[17,21,33] =  161;
  cost[18,0,33] =  304;
  cost[18,1,33] =  254;
  cost[18,2,33] =  461;
  cost[18,3,33] =  148;
  cost[18,4,33] =  299;
  cost[18,5,33] =  233;
  cost[18,6,33] =  305;
  cost[18,7,33] =  386;
  cost[18,8,33] =  464;
  cost[18,9,33] =  418;
  cost[18,10,33] =  227;
  cost[18,11,33] =  190;
  cost[18,12,33] =  47;
  cost[18,13,33] =  195;
  cost[18,14,33] =  43;
  cost[18,15,33] =  423;
  cost[18,16,33] =  180;
  cost[18,17,33] =  336;
  cost[18,18,33] =  0;
  cost[18,19,33] =  98;
  cost[18,20,33] =  214;
  cost[18,21,33] =  479;
  cost[19,0,33] =  240;
  cost[19,1,33] =  216;
  cost[19,2,33] =  90;
  cost[19,3,33] =  361;
  cost[19,4,33] =  232;
  cost[19,5,33] =  328;
  cost[19,6,33] =  264;
  cost[19,7,33] =  300;
  cost[19,8,33] =  102;
  cost[19,9,33] =  41;
  cost[19,10,33] =  292;
  cost[19,11,33] =  101;
  cost[19,12,33] =  297;
  cost[19,13,33] =  53;
  cost[19,14,33] =  262;
  cost[19,15,33] =  459;
  cost[19,16,33] =  200;
  cost[19,17,33] =  377;
  cost[19,18,33] =  98;
  cost[19,19,33] =  0;
  cost[19,20,33] =  369;
  cost[19,21,33] =  427;
  cost[20,0,33] =  401;
  cost[20,1,33] =  278;
  cost[20,2,33] =  111;
  cost[20,3,33] =  443;
  cost[20,4,33] =  238;
  cost[20,5,33] =  219;
  cost[20,6,33] =  76;
  cost[20,7,33] =  68;
  cost[20,8,33] =  104;
  cost[20,9,33] =  354;
  cost[20,10,33] =  443;
  cost[20,11,33] =  412;
  cost[20,12,33] =  327;
  cost[20,13,33] =  438;
  cost[20,14,33] =  79;
  cost[20,15,33] =  343;
  cost[20,16,33] =  187;
  cost[20,17,33] =  387;
  cost[20,18,33] =  214;
  cost[20,19,33] =  369;
  cost[20,20,33] =  0;
  cost[20,21,33] =  122;
  cost[21,0,33] =  64;
  cost[21,1,33] =  120;
  cost[21,2,33] =  49;
  cost[21,3,33] =  344;
  cost[21,4,33] =  158;
  cost[21,5,33] =  178;
  cost[21,6,33] =  222;
  cost[21,7,33] =  81;
  cost[21,8,33] =  244;
  cost[21,9,33] =  266;
  cost[21,10,33] =  101;
  cost[21,11,33] =  454;
  cost[21,12,33] =  219;
  cost[21,13,33] =  155;
  cost[21,14,33] =  318;
  cost[21,15,33] =  281;
  cost[21,16,33] =  24;
  cost[21,17,33] =  161;
  cost[21,18,33] =  479;
  cost[21,19,33] =  427;
  cost[21,20,33] =  122;
  cost[21,21,33] =  0;
  cost[0,0,34] =  0;
  cost[0,1,34] =  202;
  cost[0,2,34] =  305;
  cost[0,3,34] =  399;
  cost[0,4,34] =  384;
  cost[0,5,34] =  68;
  cost[0,6,34] =  339;
  cost[0,7,34] =  359;
  cost[0,8,34] =  411;
  cost[0,9,34] =  136;
  cost[0,10,34] =  28;
  cost[0,11,34] =  301;
  cost[0,12,34] =  316;
  cost[0,13,34] =  229;
  cost[0,14,34] =  4;
  cost[0,15,34] =  340;
  cost[0,16,34] =  164;
  cost[0,17,34] =  340;
  cost[0,18,34] =  234;
  cost[0,19,34] =  68;
  cost[0,20,34] =  18;
  cost[0,21,34] =  275;
  cost[1,0,34] =  202;
  cost[1,1,34] =  0;
  cost[1,2,34] =  233;
  cost[1,3,34] =  270;
  cost[1,4,34] =  421;
  cost[1,5,34] =  119;
  cost[1,6,34] =  213;
  cost[1,7,34] =  106;
  cost[1,8,34] =  242;
  cost[1,9,34] =  200;
  cost[1,10,34] =  54;
  cost[1,11,34] =  444;
  cost[1,12,34] =  21;
  cost[1,13,34] =  454;
  cost[1,14,34] =  344;
  cost[1,15,34] =  89;
  cost[1,16,34] =  309;
  cost[1,17,34] =  220;
  cost[1,18,34] =  17;
  cost[1,19,34] =  445;
  cost[1,20,34] =  249;
  cost[1,21,34] =  318;
  cost[2,0,34] =  305;
  cost[2,1,34] =  233;
  cost[2,2,34] =  0;
  cost[2,3,34] =  478;
  cost[2,4,34] =  323;
  cost[2,5,34] =  134;
  cost[2,6,34] =  159;
  cost[2,7,34] =  180;
  cost[2,8,34] =  369;
  cost[2,9,34] =  227;
  cost[2,10,34] =  198;
  cost[2,11,34] =  160;
  cost[2,12,34] =  394;
  cost[2,13,34] =  432;
  cost[2,14,34] =  431;
  cost[2,15,34] =  332;
  cost[2,16,34] =  67;
  cost[2,17,34] =  161;
  cost[2,18,34] =  439;
  cost[2,19,34] =  309;
  cost[2,20,34] =  361;
  cost[2,21,34] =  9;
  cost[3,0,34] =  399;
  cost[3,1,34] =  270;
  cost[3,2,34] =  478;
  cost[3,3,34] =  0;
  cost[3,4,34] =  383;
  cost[3,5,34] =  463;
  cost[3,6,34] =  130;
  cost[3,7,34] =  472;
  cost[3,8,34] =  288;
  cost[3,9,34] =  351;
  cost[3,10,34] =  6;
  cost[3,11,34] =  249;
  cost[3,12,34] =  116;
  cost[3,13,34] =  325;
  cost[3,14,34] =  43;
  cost[3,15,34] =  111;
  cost[3,16,34] =  164;
  cost[3,17,34] =  178;
  cost[3,18,34] =  270;
  cost[3,19,34] =  344;
  cost[3,20,34] =  63;
  cost[3,21,34] =  14;
  cost[4,0,34] =  384;
  cost[4,1,34] =  421;
  cost[4,2,34] =  323;
  cost[4,3,34] =  383;
  cost[4,4,34] =  0;
  cost[4,5,34] =  224;
  cost[4,6,34] =  409;
  cost[4,7,34] =  7;
  cost[4,8,34] =  171;
  cost[4,9,34] =  257;
  cost[4,10,34] =  75;
  cost[4,11,34] =  332;
  cost[4,12,34] =  212;
  cost[4,13,34] =  384;
  cost[4,14,34] =  210;
  cost[4,15,34] =  222;
  cost[4,16,34] =  170;
  cost[4,17,34] =  109;
  cost[4,18,34] =  201;
  cost[4,19,34] =  301;
  cost[4,20,34] =  98;
  cost[4,21,34] =  5;
  cost[5,0,34] =  68;
  cost[5,1,34] =  119;
  cost[5,2,34] =  134;
  cost[5,3,34] =  463;
  cost[5,4,34] =  224;
  cost[5,5,34] =  0;
  cost[5,6,34] =  104;
  cost[5,7,34] =  255;
  cost[5,8,34] =  285;
  cost[5,9,34] =  429;
  cost[5,10,34] =  299;
  cost[5,11,34] =  396;
  cost[5,12,34] =  110;
  cost[5,13,34] =  477;
  cost[5,14,34] =  183;
  cost[5,15,34] =  454;
  cost[5,16,34] =  57;
  cost[5,17,34] =  197;
  cost[5,18,34] =  30;
  cost[5,19,34] =  281;
  cost[5,20,34] =  122;
  cost[5,21,34] =  38;
  cost[6,0,34] =  339;
  cost[6,1,34] =  213;
  cost[6,2,34] =  159;
  cost[6,3,34] =  130;
  cost[6,4,34] =  409;
  cost[6,5,34] =  104;
  cost[6,6,34] =  0;
  cost[6,7,34] =  380;
  cost[6,8,34] =  113;
  cost[6,9,34] =  301;
  cost[6,10,34] =  108;
  cost[6,11,34] =  13;
  cost[6,12,34] =  28;
  cost[6,13,34] =  330;
  cost[6,14,34] =  183;
  cost[6,15,34] =  137;
  cost[6,16,34] =  48;
  cost[6,17,34] =  0;
  cost[6,18,34] =  235;
  cost[6,19,34] =  54;
  cost[6,20,34] =  169;
  cost[6,21,34] =  340;
  cost[7,0,34] =  359;
  cost[7,1,34] =  106;
  cost[7,2,34] =  180;
  cost[7,3,34] =  472;
  cost[7,4,34] =  7;
  cost[7,5,34] =  255;
  cost[7,6,34] =  380;
  cost[7,7,34] =  0;
  cost[7,8,34] =  454;
  cost[7,9,34] =  285;
  cost[7,10,34] =  125;
  cost[7,11,34] =  367;
  cost[7,12,34] =  395;
  cost[7,13,34] =  118;
  cost[7,14,34] =  66;
  cost[7,15,34] =  366;
  cost[7,16,34] =  176;
  cost[7,17,34] =  264;
  cost[7,18,34] =  397;
  cost[7,19,34] =  457;
  cost[7,20,34] =  386;
  cost[7,21,34] =  435;
  cost[8,0,34] =  411;
  cost[8,1,34] =  242;
  cost[8,2,34] =  369;
  cost[8,3,34] =  288;
  cost[8,4,34] =  171;
  cost[8,5,34] =  285;
  cost[8,6,34] =  113;
  cost[8,7,34] =  454;
  cost[8,8,34] =  0;
  cost[8,9,34] =  282;
  cost[8,10,34] =  64;
  cost[8,11,34] =  244;
  cost[8,12,34] =  391;
  cost[8,13,34] =  77;
  cost[8,14,34] =  272;
  cost[8,15,34] =  238;
  cost[8,16,34] =  261;
  cost[8,17,34] =  409;
  cost[8,18,34] =  286;
  cost[8,19,34] =  262;
  cost[8,20,34] =  161;
  cost[8,21,34] =  340;
  cost[9,0,34] =  136;
  cost[9,1,34] =  200;
  cost[9,2,34] =  227;
  cost[9,3,34] =  351;
  cost[9,4,34] =  257;
  cost[9,5,34] =  429;
  cost[9,6,34] =  301;
  cost[9,7,34] =  285;
  cost[9,8,34] =  282;
  cost[9,9,34] =  0;
  cost[9,10,34] =  17;
  cost[9,11,34] =  166;
  cost[9,12,34] =  402;
  cost[9,13,34] =  303;
  cost[9,14,34] =  291;
  cost[9,15,34] =  285;
  cost[9,16,34] =  214;
  cost[9,17,34] =  410;
  cost[9,18,34] =  352;
  cost[9,19,34] =  97;
  cost[9,20,34] =  102;
  cost[9,21,34] =  132;
  cost[10,0,34] =  28;
  cost[10,1,34] =  54;
  cost[10,2,34] =  198;
  cost[10,3,34] =  6;
  cost[10,4,34] =  75;
  cost[10,5,34] =  299;
  cost[10,6,34] =  108;
  cost[10,7,34] =  125;
  cost[10,8,34] =  64;
  cost[10,9,34] =  17;
  cost[10,10,34] =  0;
  cost[10,11,34] =  75;
  cost[10,12,34] =  35;
  cost[10,13,34] =  445;
  cost[10,14,34] =  18;
  cost[10,15,34] =  318;
  cost[10,16,34] =  26;
  cost[10,17,34] =  262;
  cost[10,18,34] =  225;
  cost[10,19,34] =  103;
  cost[10,20,34] =  51;
  cost[10,21,34] =  463;
  cost[11,0,34] =  301;
  cost[11,1,34] =  444;
  cost[11,2,34] =  160;
  cost[11,3,34] =  249;
  cost[11,4,34] =  332;
  cost[11,5,34] =  396;
  cost[11,6,34] =  13;
  cost[11,7,34] =  367;
  cost[11,8,34] =  244;
  cost[11,9,34] =  166;
  cost[11,10,34] =  75;
  cost[11,11,34] =  0;
  cost[11,12,34] =  461;
  cost[11,13,34] =  266;
  cost[11,14,34] =  143;
  cost[11,15,34] =  138;
  cost[11,16,34] =  123;
  cost[11,17,34] =  91;
  cost[11,18,34] =  155;
  cost[11,19,34] =  289;
  cost[11,20,34] =  9;
  cost[11,21,34] =  458;
  cost[12,0,34] =  316;
  cost[12,1,34] =  21;
  cost[12,2,34] =  394;
  cost[12,3,34] =  116;
  cost[12,4,34] =  212;
  cost[12,5,34] =  110;
  cost[12,6,34] =  28;
  cost[12,7,34] =  395;
  cost[12,8,34] =  391;
  cost[12,9,34] =  402;
  cost[12,10,34] =  35;
  cost[12,11,34] =  461;
  cost[12,12,34] =  0;
  cost[12,13,34] =  295;
  cost[12,14,34] =  189;
  cost[12,15,34] =  23;
  cost[12,16,34] =  163;
  cost[12,17,34] =  287;
  cost[12,18,34] =  125;
  cost[12,19,34] =  296;
  cost[12,20,34] =  298;
  cost[12,21,34] =  200;
  cost[13,0,34] =  229;
  cost[13,1,34] =  454;
  cost[13,2,34] =  432;
  cost[13,3,34] =  325;
  cost[13,4,34] =  384;
  cost[13,5,34] =  477;
  cost[13,6,34] =  330;
  cost[13,7,34] =  118;
  cost[13,8,34] =  77;
  cost[13,9,34] =  303;
  cost[13,10,34] =  445;
  cost[13,11,34] =  266;
  cost[13,12,34] =  295;
  cost[13,13,34] =  0;
  cost[13,14,34] =  259;
  cost[13,15,34] =  219;
  cost[13,16,34] =  166;
  cost[13,17,34] =  286;
  cost[13,18,34] =  482;
  cost[13,19,34] =  391;
  cost[13,20,34] =  389;
  cost[13,21,34] =  49;
  cost[14,0,34] =  4;
  cost[14,1,34] =  344;
  cost[14,2,34] =  431;
  cost[14,3,34] =  43;
  cost[14,4,34] =  210;
  cost[14,5,34] =  183;
  cost[14,6,34] =  183;
  cost[14,7,34] =  66;
  cost[14,8,34] =  272;
  cost[14,9,34] =  291;
  cost[14,10,34] =  18;
  cost[14,11,34] =  143;
  cost[14,12,34] =  189;
  cost[14,13,34] =  259;
  cost[14,14,34] =  0;
  cost[14,15,34] =  271;
  cost[14,16,34] =  26;
  cost[14,17,34] =  154;
  cost[14,18,34] =  415;
  cost[14,19,34] =  165;
  cost[14,20,34] =  277;
  cost[14,21,34] =  22;
  cost[15,0,34] =  340;
  cost[15,1,34] =  89;
  cost[15,2,34] =  332;
  cost[15,3,34] =  111;
  cost[15,4,34] =  222;
  cost[15,5,34] =  454;
  cost[15,6,34] =  137;
  cost[15,7,34] =  366;
  cost[15,8,34] =  238;
  cost[15,9,34] =  285;
  cost[15,10,34] =  318;
  cost[15,11,34] =  138;
  cost[15,12,34] =  23;
  cost[15,13,34] =  219;
  cost[15,14,34] =  271;
  cost[15,15,34] =  0;
  cost[15,16,34] =  83;
  cost[15,17,34] =  31;
  cost[15,18,34] =  296;
  cost[15,19,34] =  180;
  cost[15,20,34] =  327;
  cost[15,21,34] =  2;
  cost[16,0,34] =  164;
  cost[16,1,34] =  309;
  cost[16,2,34] =  67;
  cost[16,3,34] =  164;
  cost[16,4,34] =  170;
  cost[16,5,34] =  57;
  cost[16,6,34] =  48;
  cost[16,7,34] =  176;
  cost[16,8,34] =  261;
  cost[16,9,34] =  214;
  cost[16,10,34] =  26;
  cost[16,11,34] =  123;
  cost[16,12,34] =  163;
  cost[16,13,34] =  166;
  cost[16,14,34] =  26;
  cost[16,15,34] =  83;
  cost[16,16,34] =  0;
  cost[16,17,34] =  7;
  cost[16,18,34] =  289;
  cost[16,19,34] =  328;
  cost[16,20,34] =  304;
  cost[16,21,34] =  103;
  cost[17,0,34] =  340;
  cost[17,1,34] =  220;
  cost[17,2,34] =  161;
  cost[17,3,34] =  178;
  cost[17,4,34] =  109;
  cost[17,5,34] =  197;
  cost[17,6,34] =  0;
  cost[17,7,34] =  264;
  cost[17,8,34] =  409;
  cost[17,9,34] =  410;
  cost[17,10,34] =  262;
  cost[17,11,34] =  91;
  cost[17,12,34] =  287;
  cost[17,13,34] =  286;
  cost[17,14,34] =  154;
  cost[17,15,34] =  31;
  cost[17,16,34] =  7;
  cost[17,17,34] =  0;
  cost[17,18,34] =  152;
  cost[17,19,34] =  363;
  cost[17,20,34] =  264;
  cost[17,21,34] =  318;
  cost[18,0,34] =  234;
  cost[18,1,34] =  17;
  cost[18,2,34] =  439;
  cost[18,3,34] =  270;
  cost[18,4,34] =  201;
  cost[18,5,34] =  30;
  cost[18,6,34] =  235;
  cost[18,7,34] =  397;
  cost[18,8,34] =  286;
  cost[18,9,34] =  352;
  cost[18,10,34] =  225;
  cost[18,11,34] =  155;
  cost[18,12,34] =  125;
  cost[18,13,34] =  482;
  cost[18,14,34] =  415;
  cost[18,15,34] =  296;
  cost[18,16,34] =  289;
  cost[18,17,34] =  152;
  cost[18,18,34] =  0;
  cost[18,19,34] =  262;
  cost[18,20,34] =  225;
  cost[18,21,34] =  71;
  cost[19,0,34] =  68;
  cost[19,1,34] =  445;
  cost[19,2,34] =  309;
  cost[19,3,34] =  344;
  cost[19,4,34] =  301;
  cost[19,5,34] =  281;
  cost[19,6,34] =  54;
  cost[19,7,34] =  457;
  cost[19,8,34] =  262;
  cost[19,9,34] =  97;
  cost[19,10,34] =  103;
  cost[19,11,34] =  289;
  cost[19,12,34] =  296;
  cost[19,13,34] =  391;
  cost[19,14,34] =  165;
  cost[19,15,34] =  180;
  cost[19,16,34] =  328;
  cost[19,17,34] =  363;
  cost[19,18,34] =  262;
  cost[19,19,34] =  0;
  cost[19,20,34] =  113;
  cost[19,21,34] =  343;
  cost[20,0,34] =  18;
  cost[20,1,34] =  249;
  cost[20,2,34] =  361;
  cost[20,3,34] =  63;
  cost[20,4,34] =  98;
  cost[20,5,34] =  122;
  cost[20,6,34] =  169;
  cost[20,7,34] =  386;
  cost[20,8,34] =  161;
  cost[20,9,34] =  102;
  cost[20,10,34] =  51;
  cost[20,11,34] =  9;
  cost[20,12,34] =  298;
  cost[20,13,34] =  389;
  cost[20,14,34] =  277;
  cost[20,15,34] =  327;
  cost[20,16,34] =  304;
  cost[20,17,34] =  264;
  cost[20,18,34] =  225;
  cost[20,19,34] =  113;
  cost[20,20,34] =  0;
  cost[20,21,34] =  267;
  cost[21,0,34] =  275;
  cost[21,1,34] =  318;
  cost[21,2,34] =  9;
  cost[21,3,34] =  14;
  cost[21,4,34] =  5;
  cost[21,5,34] =  38;
  cost[21,6,34] =  340;
  cost[21,7,34] =  435;
  cost[21,8,34] =  340;
  cost[21,9,34] =  132;
  cost[21,10,34] =  463;
  cost[21,11,34] =  458;
  cost[21,12,34] =  200;
  cost[21,13,34] =  49;
  cost[21,14,34] =  22;
  cost[21,15,34] =  2;
  cost[21,16,34] =  103;
  cost[21,17,34] =  318;
  cost[21,18,34] =  71;
  cost[21,19,34] =  343;
  cost[21,20,34] =  267;
  cost[21,21,34] =  0;
  cost[0,0,35] =  0;
  cost[0,1,35] =  61;
  cost[0,2,35] =  296;
  cost[0,3,35] =  342;
  cost[0,4,35] =  144;
  cost[0,5,35] =  328;
  cost[0,6,35] =  154;
  cost[0,7,35] =  324;
  cost[0,8,35] =  172;
  cost[0,9,35] =  156;
  cost[0,10,35] =  43;
  cost[0,11,35] =  179;
  cost[0,12,35] =  446;
  cost[0,13,35] =  372;
  cost[0,14,35] =  483;
  cost[0,15,35] =  66;
  cost[0,16,35] =  417;
  cost[0,17,35] =  151;
  cost[0,18,35] =  430;
  cost[0,19,35] =  198;
  cost[0,20,35] =  469;
  cost[0,21,35] =  112;
  cost[1,0,35] =  61;
  cost[1,1,35] =  0;
  cost[1,2,35] =  211;
  cost[1,3,35] =  184;
  cost[1,4,35] =  289;
  cost[1,5,35] =  325;
  cost[1,6,35] =  43;
  cost[1,7,35] =  145;
  cost[1,8,35] =  109;
  cost[1,9,35] =  317;
  cost[1,10,35] =  166;
  cost[1,11,35] =  170;
  cost[1,12,35] =  130;
  cost[1,13,35] =  24;
  cost[1,14,35] =  314;
  cost[1,15,35] =  459;
  cost[1,16,35] =  179;
  cost[1,17,35] =  155;
  cost[1,18,35] =  147;
  cost[1,19,35] =  336;
  cost[1,20,35] =  199;
  cost[1,21,35] =  326;
  cost[2,0,35] =  296;
  cost[2,1,35] =  211;
  cost[2,2,35] =  0;
  cost[2,3,35] =  87;
  cost[2,4,35] =  326;
  cost[2,5,35] =  364;
  cost[2,6,35] =  20;
  cost[2,7,35] =  478;
  cost[2,8,35] =  311;
  cost[2,9,35] =  218;
  cost[2,10,35] =  463;
  cost[2,11,35] =  423;
  cost[2,12,35] =  195;
  cost[2,13,35] =  191;
  cost[2,14,35] =  123;
  cost[2,15,35] =  1;
  cost[2,16,35] =  33;
  cost[2,17,35] =  166;
  cost[2,18,35] =  146;
  cost[2,19,35] =  142;
  cost[2,20,35] =  0;
  cost[2,21,35] =  313;
  cost[3,0,35] =  342;
  cost[3,1,35] =  184;
  cost[3,2,35] =  87;
  cost[3,3,35] =  0;
  cost[3,4,35] =  131;
  cost[3,5,35] =  338;
  cost[3,6,35] =  143;
  cost[3,7,35] =  106;
  cost[3,8,35] =  33;
  cost[3,9,35] =  299;
  cost[3,10,35] =  253;
  cost[3,11,35] =  369;
  cost[3,12,35] =  14;
  cost[3,13,35] =  96;
  cost[3,14,35] =  184;
  cost[3,15,35] =  101;
  cost[3,16,35] =  423;
  cost[3,17,35] =  65;
  cost[3,18,35] =  121;
  cost[3,19,35] =  417;
  cost[3,20,35] =  376;
  cost[3,21,35] =  340;
  cost[4,0,35] =  144;
  cost[4,1,35] =  289;
  cost[4,2,35] =  326;
  cost[4,3,35] =  131;
  cost[4,4,35] =  0;
  cost[4,5,35] =  315;
  cost[4,6,35] =  51;
  cost[4,7,35] =  104;
  cost[4,8,35] =  438;
  cost[4,9,35] =  53;
  cost[4,10,35] =  138;
  cost[4,11,35] =  121;
  cost[4,12,35] =  199;
  cost[4,13,35] =  280;
  cost[4,14,35] =  121;
  cost[4,15,35] =  29;
  cost[4,16,35] =  109;
  cost[4,17,35] =  252;
  cost[4,18,35] =  367;
  cost[4,19,35] =  253;
  cost[4,20,35] =  358;
  cost[4,21,35] =  400;
  cost[5,0,35] =  328;
  cost[5,1,35] =  325;
  cost[5,2,35] =  364;
  cost[5,3,35] =  338;
  cost[5,4,35] =  315;
  cost[5,5,35] =  0;
  cost[5,6,35] =  128;
  cost[5,7,35] =  286;
  cost[5,8,35] =  83;
  cost[5,9,35] =  225;
  cost[5,10,35] =  470;
  cost[5,11,35] =  184;
  cost[5,12,35] =  164;
  cost[5,13,35] =  51;
  cost[5,14,35] =  306;
  cost[5,15,35] =  97;
  cost[5,16,35] =  427;
  cost[5,17,35] =  162;
  cost[5,18,35] =  10;
  cost[5,19,35] =  259;
  cost[5,20,35] =  214;
  cost[5,21,35] =  115;
  cost[6,0,35] =  154;
  cost[6,1,35] =  43;
  cost[6,2,35] =  20;
  cost[6,3,35] =  143;
  cost[6,4,35] =  51;
  cost[6,5,35] =  128;
  cost[6,6,35] =  0;
  cost[6,7,35] =  267;
  cost[6,8,35] =  253;
  cost[6,9,35] =  334;
  cost[6,10,35] =  467;
  cost[6,11,35] =  50;
  cost[6,12,35] =  456;
  cost[6,13,35] =  13;
  cost[6,14,35] =  159;
  cost[6,15,35] =  225;
  cost[6,16,35] =  380;
  cost[6,17,35] =  412;
  cost[6,18,35] =  100;
  cost[6,19,35] =  297;
  cost[6,20,35] =  481;
  cost[6,21,35] =  228;
  cost[7,0,35] =  324;
  cost[7,1,35] =  145;
  cost[7,2,35] =  478;
  cost[7,3,35] =  106;
  cost[7,4,35] =  104;
  cost[7,5,35] =  286;
  cost[7,6,35] =  267;
  cost[7,7,35] =  0;
  cost[7,8,35] =  80;
  cost[7,9,35] =  454;
  cost[7,10,35] =  86;
  cost[7,11,35] =  264;
  cost[7,12,35] =  134;
  cost[7,13,35] =  138;
  cost[7,14,35] =  87;
  cost[7,15,35] =  232;
  cost[7,16,35] =  82;
  cost[7,17,35] =  249;
  cost[7,18,35] =  242;
  cost[7,19,35] =  341;
  cost[7,20,35] =  464;
  cost[7,21,35] =  358;
  cost[8,0,35] =  172;
  cost[8,1,35] =  109;
  cost[8,2,35] =  311;
  cost[8,3,35] =  33;
  cost[8,4,35] =  438;
  cost[8,5,35] =  83;
  cost[8,6,35] =  253;
  cost[8,7,35] =  80;
  cost[8,8,35] =  0;
  cost[8,9,35] =  248;
  cost[8,10,35] =  128;
  cost[8,11,35] =  405;
  cost[8,12,35] =  232;
  cost[8,13,35] =  178;
  cost[8,14,35] =  378;
  cost[8,15,35] =  245;
  cost[8,16,35] =  337;
  cost[8,17,35] =  119;
  cost[8,18,35] =  141;
  cost[8,19,35] =  266;
  cost[8,20,35] =  219;
  cost[8,21,35] =  438;
  cost[9,0,35] =  156;
  cost[9,1,35] =  317;
  cost[9,2,35] =  218;
  cost[9,3,35] =  299;
  cost[9,4,35] =  53;
  cost[9,5,35] =  225;
  cost[9,6,35] =  334;
  cost[9,7,35] =  454;
  cost[9,8,35] =  248;
  cost[9,9,35] =  0;
  cost[9,10,35] =  448;
  cost[9,11,35] =  54;
  cost[9,12,35] =  343;
  cost[9,13,35] =  418;
  cost[9,14,35] =  141;
  cost[9,15,35] =  124;
  cost[9,16,35] =  69;
  cost[9,17,35] =  279;
  cost[9,18,35] =  211;
  cost[9,19,35] =  301;
  cost[9,20,35] =  361;
  cost[9,21,35] =  461;
  cost[10,0,35] =  43;
  cost[10,1,35] =  166;
  cost[10,2,35] =  463;
  cost[10,3,35] =  253;
  cost[10,4,35] =  138;
  cost[10,5,35] =  470;
  cost[10,6,35] =  467;
  cost[10,7,35] =  86;
  cost[10,8,35] =  128;
  cost[10,9,35] =  448;
  cost[10,10,35] =  0;
  cost[10,11,35] =  218;
  cost[10,12,35] =  442;
  cost[10,13,35] =  419;
  cost[10,14,35] =  289;
  cost[10,15,35] =  206;
  cost[10,16,35] =  63;
  cost[10,17,35] =  211;
  cost[10,18,35] =  438;
  cost[10,19,35] =  241;
  cost[10,20,35] =  105;
  cost[10,21,35] =  200;
  cost[11,0,35] =  179;
  cost[11,1,35] =  170;
  cost[11,2,35] =  423;
  cost[11,3,35] =  369;
  cost[11,4,35] =  121;
  cost[11,5,35] =  184;
  cost[11,6,35] =  50;
  cost[11,7,35] =  264;
  cost[11,8,35] =  405;
  cost[11,9,35] =  54;
  cost[11,10,35] =  218;
  cost[11,11,35] =  0;
  cost[11,12,35] =  225;
  cost[11,13,35] =  342;
  cost[11,14,35] =  361;
  cost[11,15,35] =  445;
  cost[11,16,35] =  296;
  cost[11,17,35] =  140;
  cost[11,18,35] =  410;
  cost[11,19,35] =  351;
  cost[11,20,35] =  0;
  cost[11,21,35] =  345;
  cost[12,0,35] =  446;
  cost[12,1,35] =  130;
  cost[12,2,35] =  195;
  cost[12,3,35] =  14;
  cost[12,4,35] =  199;
  cost[12,5,35] =  164;
  cost[12,6,35] =  456;
  cost[12,7,35] =  134;
  cost[12,8,35] =  232;
  cost[12,9,35] =  343;
  cost[12,10,35] =  442;
  cost[12,11,35] =  225;
  cost[12,12,35] =  0;
  cost[12,13,35] =  125;
  cost[12,14,35] =  414;
  cost[12,15,35] =  287;
  cost[12,16,35] =  337;
  cost[12,17,35] =  232;
  cost[12,18,35] =  165;
  cost[12,19,35] =  315;
  cost[12,20,35] =  293;
  cost[12,21,35] =  383;
  cost[13,0,35] =  372;
  cost[13,1,35] =  24;
  cost[13,2,35] =  191;
  cost[13,3,35] =  96;
  cost[13,4,35] =  280;
  cost[13,5,35] =  51;
  cost[13,6,35] =  13;
  cost[13,7,35] =  138;
  cost[13,8,35] =  178;
  cost[13,9,35] =  418;
  cost[13,10,35] =  419;
  cost[13,11,35] =  342;
  cost[13,12,35] =  125;
  cost[13,13,35] =  0;
  cost[13,14,35] =  228;
  cost[13,15,35] =  188;
  cost[13,16,35] =  480;
  cost[13,17,35] =  291;
  cost[13,18,35] =  400;
  cost[13,19,35] =  435;
  cost[13,20,35] =  48;
  cost[13,21,35] =  22;
  cost[14,0,35] =  483;
  cost[14,1,35] =  314;
  cost[14,2,35] =  123;
  cost[14,3,35] =  184;
  cost[14,4,35] =  121;
  cost[14,5,35] =  306;
  cost[14,6,35] =  159;
  cost[14,7,35] =  87;
  cost[14,8,35] =  378;
  cost[14,9,35] =  141;
  cost[14,10,35] =  289;
  cost[14,11,35] =  361;
  cost[14,12,35] =  414;
  cost[14,13,35] =  228;
  cost[14,14,35] =  0;
  cost[14,15,35] =  143;
  cost[14,16,35] =  247;
  cost[14,17,35] =  9;
  cost[14,18,35] =  20;
  cost[14,19,35] =  209;
  cost[14,20,35] =  306;
  cost[14,21,35] =  161;
  cost[15,0,35] =  66;
  cost[15,1,35] =  459;
  cost[15,2,35] =  1;
  cost[15,3,35] =  101;
  cost[15,4,35] =  29;
  cost[15,5,35] =  97;
  cost[15,6,35] =  225;
  cost[15,7,35] =  232;
  cost[15,8,35] =  245;
  cost[15,9,35] =  124;
  cost[15,10,35] =  206;
  cost[15,11,35] =  445;
  cost[15,12,35] =  287;
  cost[15,13,35] =  188;
  cost[15,14,35] =  143;
  cost[15,15,35] =  0;
  cost[15,16,35] =  174;
  cost[15,17,35] =  161;
  cost[15,18,35] =  480;
  cost[15,19,35] =  182;
  cost[15,20,35] =  286;
  cost[15,21,35] =  411;
  cost[16,0,35] =  417;
  cost[16,1,35] =  179;
  cost[16,2,35] =  33;
  cost[16,3,35] =  423;
  cost[16,4,35] =  109;
  cost[16,5,35] =  427;
  cost[16,6,35] =  380;
  cost[16,7,35] =  82;
  cost[16,8,35] =  337;
  cost[16,9,35] =  69;
  cost[16,10,35] =  63;
  cost[16,11,35] =  296;
  cost[16,12,35] =  337;
  cost[16,13,35] =  480;
  cost[16,14,35] =  247;
  cost[16,15,35] =  174;
  cost[16,16,35] =  0;
  cost[16,17,35] =  140;
  cost[16,18,35] =  160;
  cost[16,19,35] =  151;
  cost[16,20,35] =  455;
  cost[16,21,35] =  453;
  cost[17,0,35] =  151;
  cost[17,1,35] =  155;
  cost[17,2,35] =  166;
  cost[17,3,35] =  65;
  cost[17,4,35] =  252;
  cost[17,5,35] =  162;
  cost[17,6,35] =  412;
  cost[17,7,35] =  249;
  cost[17,8,35] =  119;
  cost[17,9,35] =  279;
  cost[17,10,35] =  211;
  cost[17,11,35] =  140;
  cost[17,12,35] =  232;
  cost[17,13,35] =  291;
  cost[17,14,35] =  9;
  cost[17,15,35] =  161;
  cost[17,16,35] =  140;
  cost[17,17,35] =  0;
  cost[17,18,35] =  244;
  cost[17,19,35] =  197;
  cost[17,20,35] =  240;
  cost[17,21,35] =  240;
  cost[18,0,35] =  430;
  cost[18,1,35] =  147;
  cost[18,2,35] =  146;
  cost[18,3,35] =  121;
  cost[18,4,35] =  367;
  cost[18,5,35] =  10;
  cost[18,6,35] =  100;
  cost[18,7,35] =  242;
  cost[18,8,35] =  141;
  cost[18,9,35] =  211;
  cost[18,10,35] =  438;
  cost[18,11,35] =  410;
  cost[18,12,35] =  165;
  cost[18,13,35] =  400;
  cost[18,14,35] =  20;
  cost[18,15,35] =  480;
  cost[18,16,35] =  160;
  cost[18,17,35] =  244;
  cost[18,18,35] =  0;
  cost[18,19,35] =  156;
  cost[18,20,35] =  191;
  cost[18,21,35] =  54;
  cost[19,0,35] =  198;
  cost[19,1,35] =  336;
  cost[19,2,35] =  142;
  cost[19,3,35] =  417;
  cost[19,4,35] =  253;
  cost[19,5,35] =  259;
  cost[19,6,35] =  297;
  cost[19,7,35] =  341;
  cost[19,8,35] =  266;
  cost[19,9,35] =  301;
  cost[19,10,35] =  241;
  cost[19,11,35] =  351;
  cost[19,12,35] =  315;
  cost[19,13,35] =  435;
  cost[19,14,35] =  209;
  cost[19,15,35] =  182;
  cost[19,16,35] =  151;
  cost[19,17,35] =  197;
  cost[19,18,35] =  156;
  cost[19,19,35] =  0;
  cost[19,20,35] =  343;
  cost[19,21,35] =  198;
  cost[20,0,35] =  469;
  cost[20,1,35] =  199;
  cost[20,2,35] =  0;
  cost[20,3,35] =  376;
  cost[20,4,35] =  358;
  cost[20,5,35] =  214;
  cost[20,6,35] =  481;
  cost[20,7,35] =  464;
  cost[20,8,35] =  219;
  cost[20,9,35] =  361;
  cost[20,10,35] =  105;
  cost[20,11,35] =  0;
  cost[20,12,35] =  293;
  cost[20,13,35] =  48;
  cost[20,14,35] =  306;
  cost[20,15,35] =  286;
  cost[20,16,35] =  455;
  cost[20,17,35] =  240;
  cost[20,18,35] =  191;
  cost[20,19,35] =  343;
  cost[20,20,35] =  0;
  cost[20,21,35] =  352;
  cost[21,0,35] =  112;
  cost[21,1,35] =  326;
  cost[21,2,35] =  313;
  cost[21,3,35] =  340;
  cost[21,4,35] =  400;
  cost[21,5,35] =  115;
  cost[21,6,35] =  228;
  cost[21,7,35] =  358;
  cost[21,8,35] =  438;
  cost[21,9,35] =  461;
  cost[21,10,35] =  200;
  cost[21,11,35] =  345;
  cost[21,12,35] =  383;
  cost[21,13,35] =  22;
  cost[21,14,35] =  161;
  cost[21,15,35] =  411;
  cost[21,16,35] =  453;
  cost[21,17,35] =  240;
  cost[21,18,35] =  54;
  cost[21,19,35] =  198;
  cost[21,20,35] =  352;
  cost[21,21,35] =  0;
  cost[0,0,36] =  0;
  cost[0,1,36] =  175;
  cost[0,2,36] =  380;
  cost[0,3,36] =  287;
  cost[0,4,36] =  349;
  cost[0,5,36] =  58;
  cost[0,6,36] =  283;
  cost[0,7,36] =  48;
  cost[0,8,36] =  345;
  cost[0,9,36] =  211;
  cost[0,10,36] =  34;
  cost[0,11,36] =  1;
  cost[0,12,36] =  371;
  cost[0,13,36] =  186;
  cost[0,14,36] =  456;
  cost[0,15,36] =  341;
  cost[0,16,36] =  237;
  cost[0,17,36] =  217;
  cost[0,18,36] =  55;
  cost[0,19,36] =  477;
  cost[0,20,36] =  457;
  cost[0,21,36] =  60;
  cost[1,0,36] =  175;
  cost[1,1,36] =  0;
  cost[1,2,36] =  165;
  cost[1,3,36] =  115;
  cost[1,4,36] =  328;
  cost[1,5,36] =  25;
  cost[1,6,36] =  313;
  cost[1,7,36] =  271;
  cost[1,8,36] =  378;
  cost[1,9,36] =  48;
  cost[1,10,36] =  422;
  cost[1,11,36] =  69;
  cost[1,12,36] =  429;
  cost[1,13,36] =  225;
  cost[1,14,36] =  419;
  cost[1,15,36] =  4;
  cost[1,16,36] =  25;
  cost[1,17,36] =  467;
  cost[1,18,36] =  349;
  cost[1,19,36] =  237;
  cost[1,20,36] =  18;
  cost[1,21,36] =  350;
  cost[2,0,36] =  380;
  cost[2,1,36] =  165;
  cost[2,2,36] =  0;
  cost[2,3,36] =  205;
  cost[2,4,36] =  323;
  cost[2,5,36] =  465;
  cost[2,6,36] =  442;
  cost[2,7,36] =  56;
  cost[2,8,36] =  37;
  cost[2,9,36] =  436;
  cost[2,10,36] =  30;
  cost[2,11,36] =  97;
  cost[2,12,36] =  102;
  cost[2,13,36] =  196;
  cost[2,14,36] =  213;
  cost[2,15,36] =  431;
  cost[2,16,36] =  221;
  cost[2,17,36] =  42;
  cost[2,18,36] =  218;
  cost[2,19,36] =  116;
  cost[2,20,36] =  91;
  cost[2,21,36] =  157;
  cost[3,0,36] =  287;
  cost[3,1,36] =  115;
  cost[3,2,36] =  205;
  cost[3,3,36] =  0;
  cost[3,4,36] =  37;
  cost[3,5,36] =  382;
  cost[3,6,36] =  121;
  cost[3,7,36] =  41;
  cost[3,8,36] =  408;
  cost[3,9,36] =  104;
  cost[3,10,36] =  390;
  cost[3,11,36] =  161;
  cost[3,12,36] =  123;
  cost[3,13,36] =  257;
  cost[3,14,36] =  286;
  cost[3,15,36] =  328;
  cost[3,16,36] =  97;
  cost[3,17,36] =  268;
  cost[3,18,36] =  287;
  cost[3,19,36] =  153;
  cost[3,20,36] =  305;
  cost[3,21,36] =  240;
  cost[4,0,36] =  349;
  cost[4,1,36] =  328;
  cost[4,2,36] =  323;
  cost[4,3,36] =  37;
  cost[4,4,36] =  0;
  cost[4,5,36] =  402;
  cost[4,6,36] =  342;
  cost[4,7,36] =  380;
  cost[4,8,36] =  131;
  cost[4,9,36] =  290;
  cost[4,10,36] =  118;
  cost[4,11,36] =  174;
  cost[4,12,36] =  24;
  cost[4,13,36] =  234;
  cost[4,14,36] =  266;
  cost[4,15,36] =  181;
  cost[4,16,36] =  420;
  cost[4,17,36] =  303;
  cost[4,18,36] =  80;
  cost[4,19,36] =  57;
  cost[4,20,36] =  344;
  cost[4,21,36] =  4;
  cost[5,0,36] =  58;
  cost[5,1,36] =  25;
  cost[5,2,36] =  465;
  cost[5,3,36] =  382;
  cost[5,4,36] =  402;
  cost[5,5,36] =  0;
  cost[5,6,36] =  251;
  cost[5,7,36] =  166;
  cost[5,8,36] =  285;
  cost[5,9,36] =  25;
  cost[5,10,36] =  452;
  cost[5,11,36] =  130;
  cost[5,12,36] =  122;
  cost[5,13,36] =  236;
  cost[5,14,36] =  417;
  cost[5,15,36] =  275;
  cost[5,16,36] =  57;
  cost[5,17,36] =  174;
  cost[5,18,36] =  460;
  cost[5,19,36] =  460;
  cost[5,20,36] =  32;
  cost[5,21,36] =  356;
  cost[6,0,36] =  283;
  cost[6,1,36] =  313;
  cost[6,2,36] =  442;
  cost[6,3,36] =  121;
  cost[6,4,36] =  342;
  cost[6,5,36] =  251;
  cost[6,6,36] =  0;
  cost[6,7,36] =  322;
  cost[6,8,36] =  475;
  cost[6,9,36] =  282;
  cost[6,10,36] =  347;
  cost[6,11,36] =  225;
  cost[6,12,36] =  64;
  cost[6,13,36] =  44;
  cost[6,14,36] =  162;
  cost[6,15,36] =  368;
  cost[6,16,36] =  125;
  cost[6,17,36] =  219;
  cost[6,18,36] =  228;
  cost[6,19,36] =  130;
  cost[6,20,36] =  381;
  cost[6,21,36] =  480;
  cost[7,0,36] =  48;
  cost[7,1,36] =  271;
  cost[7,2,36] =  56;
  cost[7,3,36] =  41;
  cost[7,4,36] =  380;
  cost[7,5,36] =  166;
  cost[7,6,36] =  322;
  cost[7,7,36] =  0;
  cost[7,8,36] =  183;
  cost[7,9,36] =  21;
  cost[7,10,36] =  264;
  cost[7,11,36] =  314;
  cost[7,12,36] =  143;
  cost[7,13,36] =  16;
  cost[7,14,36] =  248;
  cost[7,15,36] =  419;
  cost[7,16,36] =  74;
  cost[7,17,36] =  422;
  cost[7,18,36] =  395;
  cost[7,19,36] =  50;
  cost[7,20,36] =  454;
  cost[7,21,36] =  268;
  cost[8,0,36] =  345;
  cost[8,1,36] =  378;
  cost[8,2,36] =  37;
  cost[8,3,36] =  408;
  cost[8,4,36] =  131;
  cost[8,5,36] =  285;
  cost[8,6,36] =  475;
  cost[8,7,36] =  183;
  cost[8,8,36] =  0;
  cost[8,9,36] =  293;
  cost[8,10,36] =  259;
  cost[8,11,36] =  440;
  cost[8,12,36] =  157;
  cost[8,13,36] =  1;
  cost[8,14,36] =  21;
  cost[8,15,36] =  202;
  cost[8,16,36] =  163;
  cost[8,17,36] =  389;
  cost[8,18,36] =  327;
  cost[8,19,36] =  383;
  cost[8,20,36] =  134;
  cost[8,21,36] =  457;
  cost[9,0,36] =  211;
  cost[9,1,36] =  48;
  cost[9,2,36] =  436;
  cost[9,3,36] =  104;
  cost[9,4,36] =  290;
  cost[9,5,36] =  25;
  cost[9,6,36] =  282;
  cost[9,7,36] =  21;
  cost[9,8,36] =  293;
  cost[9,9,36] =  0;
  cost[9,10,36] =  131;
  cost[9,11,36] =  269;
  cost[9,12,36] =  464;
  cost[9,13,36] =  152;
  cost[9,14,36] =  50;
  cost[9,15,36] =  294;
  cost[9,16,36] =  296;
  cost[9,17,36] =  67;
  cost[9,18,36] =  58;
  cost[9,19,36] =  231;
  cost[9,20,36] =  141;
  cost[9,21,36] =  480;
  cost[10,0,36] =  34;
  cost[10,1,36] =  422;
  cost[10,2,36] =  30;
  cost[10,3,36] =  390;
  cost[10,4,36] =  118;
  cost[10,5,36] =  452;
  cost[10,6,36] =  347;
  cost[10,7,36] =  264;
  cost[10,8,36] =  259;
  cost[10,9,36] =  131;
  cost[10,10,36] =  0;
  cost[10,11,36] =  191;
  cost[10,12,36] =  451;
  cost[10,13,36] =  411;
  cost[10,14,36] =  349;
  cost[10,15,36] =  261;
  cost[10,16,36] =  187;
  cost[10,17,36] =  306;
  cost[10,18,36] =  418;
  cost[10,19,36] =  188;
  cost[10,20,36] =  328;
  cost[10,21,36] =  137;
  cost[11,0,36] =  1;
  cost[11,1,36] =  69;
  cost[11,2,36] =  97;
  cost[11,3,36] =  161;
  cost[11,4,36] =  174;
  cost[11,5,36] =  130;
  cost[11,6,36] =  225;
  cost[11,7,36] =  314;
  cost[11,8,36] =  440;
  cost[11,9,36] =  269;
  cost[11,10,36] =  191;
  cost[11,11,36] =  0;
  cost[11,12,36] =  234;
  cost[11,13,36] =  464;
  cost[11,14,36] =  251;
  cost[11,15,36] =  368;
  cost[11,16,36] =  438;
  cost[11,17,36] =  48;
  cost[11,18,36] =  16;
  cost[11,19,36] =  224;
  cost[11,20,36] =  28;
  cost[11,21,36] =  168;
  cost[12,0,36] =  371;
  cost[12,1,36] =  429;
  cost[12,2,36] =  102;
  cost[12,3,36] =  123;
  cost[12,4,36] =  24;
  cost[12,5,36] =  122;
  cost[12,6,36] =  64;
  cost[12,7,36] =  143;
  cost[12,8,36] =  157;
  cost[12,9,36] =  464;
  cost[12,10,36] =  451;
  cost[12,11,36] =  234;
  cost[12,12,36] =  0;
  cost[12,13,36] =  323;
  cost[12,14,36] =  464;
  cost[12,15,36] =  341;
  cost[12,16,36] =  381;
  cost[12,17,36] =  212;
  cost[12,18,36] =  482;
  cost[12,19,36] =  378;
  cost[12,20,36] =  355;
  cost[12,21,36] =  190;
  cost[13,0,36] =  186;
  cost[13,1,36] =  225;
  cost[13,2,36] =  196;
  cost[13,3,36] =  257;
  cost[13,4,36] =  234;
  cost[13,5,36] =  236;
  cost[13,6,36] =  44;
  cost[13,7,36] =  16;
  cost[13,8,36] =  1;
  cost[13,9,36] =  152;
  cost[13,10,36] =  411;
  cost[13,11,36] =  464;
  cost[13,12,36] =  323;
  cost[13,13,36] =  0;
  cost[13,14,36] =  283;
  cost[13,15,36] =  56;
  cost[13,16,36] =  123;
  cost[13,17,36] =  470;
  cost[13,18,36] =  362;
  cost[13,19,36] =  58;
  cost[13,20,36] =  175;
  cost[13,21,36] =  206;
  cost[14,0,36] =  456;
  cost[14,1,36] =  419;
  cost[14,2,36] =  213;
  cost[14,3,36] =  286;
  cost[14,4,36] =  266;
  cost[14,5,36] =  417;
  cost[14,6,36] =  162;
  cost[14,7,36] =  248;
  cost[14,8,36] =  21;
  cost[14,9,36] =  50;
  cost[14,10,36] =  349;
  cost[14,11,36] =  251;
  cost[14,12,36] =  464;
  cost[14,13,36] =  283;
  cost[14,14,36] =  0;
  cost[14,15,36] =  44;
  cost[14,16,36] =  440;
  cost[14,17,36] =  176;
  cost[14,18,36] =  295;
  cost[14,19,36] =  325;
  cost[14,20,36] =  131;
  cost[14,21,36] =  344;
  cost[15,0,36] =  341;
  cost[15,1,36] =  4;
  cost[15,2,36] =  431;
  cost[15,3,36] =  328;
  cost[15,4,36] =  181;
  cost[15,5,36] =  275;
  cost[15,6,36] =  368;
  cost[15,7,36] =  419;
  cost[15,8,36] =  202;
  cost[15,9,36] =  294;
  cost[15,10,36] =  261;
  cost[15,11,36] =  368;
  cost[15,12,36] =  341;
  cost[15,13,36] =  56;
  cost[15,14,36] =  44;
  cost[15,15,36] =  0;
  cost[15,16,36] =  355;
  cost[15,17,36] =  373;
  cost[15,18,36] =  26;
  cost[15,19,36] =  146;
  cost[15,20,36] =  212;
  cost[15,21,36] =  7;
  cost[16,0,36] =  237;
  cost[16,1,36] =  25;
  cost[16,2,36] =  221;
  cost[16,3,36] =  97;
  cost[16,4,36] =  420;
  cost[16,5,36] =  57;
  cost[16,6,36] =  125;
  cost[16,7,36] =  74;
  cost[16,8,36] =  163;
  cost[16,9,36] =  296;
  cost[16,10,36] =  187;
  cost[16,11,36] =  438;
  cost[16,12,36] =  381;
  cost[16,13,36] =  123;
  cost[16,14,36] =  440;
  cost[16,15,36] =  355;
  cost[16,16,36] =  0;
  cost[16,17,36] =  110;
  cost[16,18,36] =  220;
  cost[16,19,36] =  2;
  cost[16,20,36] =  5;
  cost[16,21,36] =  91;
  cost[17,0,36] =  217;
  cost[17,1,36] =  467;
  cost[17,2,36] =  42;
  cost[17,3,36] =  268;
  cost[17,4,36] =  303;
  cost[17,5,36] =  174;
  cost[17,6,36] =  219;
  cost[17,7,36] =  422;
  cost[17,8,36] =  389;
  cost[17,9,36] =  67;
  cost[17,10,36] =  306;
  cost[17,11,36] =  48;
  cost[17,12,36] =  212;
  cost[17,13,36] =  470;
  cost[17,14,36] =  176;
  cost[17,15,36] =  373;
  cost[17,16,36] =  110;
  cost[17,17,36] =  0;
  cost[17,18,36] =  351;
  cost[17,19,36] =  375;
  cost[17,20,36] =  248;
  cost[17,21,36] =  474;
  cost[18,0,36] =  55;
  cost[18,1,36] =  349;
  cost[18,2,36] =  218;
  cost[18,3,36] =  287;
  cost[18,4,36] =  80;
  cost[18,5,36] =  460;
  cost[18,6,36] =  228;
  cost[18,7,36] =  395;
  cost[18,8,36] =  327;
  cost[18,9,36] =  58;
  cost[18,10,36] =  418;
  cost[18,11,36] =  16;
  cost[18,12,36] =  482;
  cost[18,13,36] =  362;
  cost[18,14,36] =  295;
  cost[18,15,36] =  26;
  cost[18,16,36] =  220;
  cost[18,17,36] =  351;
  cost[18,18,36] =  0;
  cost[18,19,36] =  127;
  cost[18,20,36] =  48;
  cost[18,21,36] =  54;
  cost[19,0,36] =  477;
  cost[19,1,36] =  237;
  cost[19,2,36] =  116;
  cost[19,3,36] =  153;
  cost[19,4,36] =  57;
  cost[19,5,36] =  460;
  cost[19,6,36] =  130;
  cost[19,7,36] =  50;
  cost[19,8,36] =  383;
  cost[19,9,36] =  231;
  cost[19,10,36] =  188;
  cost[19,11,36] =  224;
  cost[19,12,36] =  378;
  cost[19,13,36] =  58;
  cost[19,14,36] =  325;
  cost[19,15,36] =  146;
  cost[19,16,36] =  2;
  cost[19,17,36] =  375;
  cost[19,18,36] =  127;
  cost[19,19,36] =  0;
  cost[19,20,36] =  244;
  cost[19,21,36] =  98;
  cost[20,0,36] =  457;
  cost[20,1,36] =  18;
  cost[20,2,36] =  91;
  cost[20,3,36] =  305;
  cost[20,4,36] =  344;
  cost[20,5,36] =  32;
  cost[20,6,36] =  381;
  cost[20,7,36] =  454;
  cost[20,8,36] =  134;
  cost[20,9,36] =  141;
  cost[20,10,36] =  328;
  cost[20,11,36] =  28;
  cost[20,12,36] =  355;
  cost[20,13,36] =  175;
  cost[20,14,36] =  131;
  cost[20,15,36] =  212;
  cost[20,16,36] =  5;
  cost[20,17,36] =  248;
  cost[20,18,36] =  48;
  cost[20,19,36] =  244;
  cost[20,20,36] =  0;
  cost[20,21,36] =  420;
  cost[21,0,36] =  60;
  cost[21,1,36] =  350;
  cost[21,2,36] =  157;
  cost[21,3,36] =  240;
  cost[21,4,36] =  4;
  cost[21,5,36] =  356;
  cost[21,6,36] =  480;
  cost[21,7,36] =  268;
  cost[21,8,36] =  457;
  cost[21,9,36] =  480;
  cost[21,10,36] =  137;
  cost[21,11,36] =  168;
  cost[21,12,36] =  190;
  cost[21,13,36] =  206;
  cost[21,14,36] =  344;
  cost[21,15,36] =  7;
  cost[21,16,36] =  91;
  cost[21,17,36] =  474;
  cost[21,18,36] =  54;
  cost[21,19,36] =  98;
  cost[21,20,36] =  420;
  cost[21,21,36] =  0;
  cost[0,0,37] =  0;
  cost[0,1,37] =  67;
  cost[0,2,37] =  254;
  cost[0,3,37] =  475;
  cost[0,4,37] =  423;
  cost[0,5,37] =  144;
  cost[0,6,37] =  18;
  cost[0,7,37] =  85;
  cost[0,8,37] =  357;
  cost[0,9,37] =  26;
  cost[0,10,37] =  89;
  cost[0,11,37] =  467;
  cost[0,12,37] =  246;
  cost[0,13,37] =  91;
  cost[0,14,37] =  472;
  cost[0,15,37] =  338;
  cost[0,16,37] =  284;
  cost[0,17,37] =  340;
  cost[0,18,37] =  229;
  cost[0,19,37] =  49;
  cost[0,20,37] =  330;
  cost[0,21,37] =  107;
  cost[1,0,37] =  67;
  cost[1,1,37] =  0;
  cost[1,2,37] =  379;
  cost[1,3,37] =  161;
  cost[1,4,37] =  27;
  cost[1,5,37] =  139;
  cost[1,6,37] =  260;
  cost[1,7,37] =  319;
  cost[1,8,37] =  76;
  cost[1,9,37] =  170;
  cost[1,10,37] =  452;
  cost[1,11,37] =  143;
  cost[1,12,37] =  425;
  cost[1,13,37] =  443;
  cost[1,14,37] =  83;
  cost[1,15,37] =  85;
  cost[1,16,37] =  462;
  cost[1,17,37] =  168;
  cost[1,18,37] =  442;
  cost[1,19,37] =  4;
  cost[1,20,37] =  257;
  cost[1,21,37] =  426;
  cost[2,0,37] =  254;
  cost[2,1,37] =  379;
  cost[2,2,37] =  0;
  cost[2,3,37] =  348;
  cost[2,4,37] =  415;
  cost[2,5,37] =  104;
  cost[2,6,37] =  149;
  cost[2,7,37] =  271;
  cost[2,8,37] =  334;
  cost[2,9,37] =  199;
  cost[2,10,37] =  118;
  cost[2,11,37] =  442;
  cost[2,12,37] =  376;
  cost[2,13,37] =  13;
  cost[2,14,37] =  120;
  cost[2,15,37] =  403;
  cost[2,16,37] =  153;
  cost[2,17,37] =  380;
  cost[2,18,37] =  239;
  cost[2,19,37] =  229;
  cost[2,20,37] =  67;
  cost[2,21,37] =  207;
  cost[3,0,37] =  475;
  cost[3,1,37] =  161;
  cost[3,2,37] =  348;
  cost[3,3,37] =  0;
  cost[3,4,37] =  8;
  cost[3,5,37] =  167;
  cost[3,6,37] =  456;
  cost[3,7,37] =  94;
  cost[3,8,37] =  145;
  cost[3,9,37] =  140;
  cost[3,10,37] =  53;
  cost[3,11,37] =  149;
  cost[3,12,37] =  398;
  cost[3,13,37] =  480;
  cost[3,14,37] =  400;
  cost[3,15,37] =  263;
  cost[3,16,37] =  412;
  cost[3,17,37] =  21;
  cost[3,18,37] =  412;
  cost[3,19,37] =  200;
  cost[3,20,37] =  355;
  cost[3,21,37] =  127;
  cost[4,0,37] =  423;
  cost[4,1,37] =  27;
  cost[4,2,37] =  415;
  cost[4,3,37] =  8;
  cost[4,4,37] =  0;
  cost[4,5,37] =  313;
  cost[4,6,37] =  20;
  cost[4,7,37] =  332;
  cost[4,8,37] =  433;
  cost[4,9,37] =  424;
  cost[4,10,37] =  1;
  cost[4,11,37] =  330;
  cost[4,12,37] =  179;
  cost[4,13,37] =  231;
  cost[4,14,37] =  397;
  cost[4,15,37] =  386;
  cost[4,16,37] =  121;
  cost[4,17,37] =  406;
  cost[4,18,37] =  70;
  cost[4,19,37] =  93;
  cost[4,20,37] =  16;
  cost[4,21,37] =  215;
  cost[5,0,37] =  144;
  cost[5,1,37] =  139;
  cost[5,2,37] =  104;
  cost[5,3,37] =  167;
  cost[5,4,37] =  313;
  cost[5,5,37] =  0;
  cost[5,6,37] =  70;
  cost[5,7,37] =  365;
  cost[5,8,37] =  148;
  cost[5,9,37] =  66;
  cost[5,10,37] =  281;
  cost[5,11,37] =  412;
  cost[5,12,37] =  478;
  cost[5,13,37] =  303;
  cost[5,14,37] =  340;
  cost[5,15,37] =  194;
  cost[5,16,37] =  174;
  cost[5,17,37] =  468;
  cost[5,18,37] =  29;
  cost[5,19,37] =  4;
  cost[5,20,37] =  5;
  cost[5,21,37] =  361;
  cost[6,0,37] =  18;
  cost[6,1,37] =  260;
  cost[6,2,37] =  149;
  cost[6,3,37] =  456;
  cost[6,4,37] =  20;
  cost[6,5,37] =  70;
  cost[6,6,37] =  0;
  cost[6,7,37] =  429;
  cost[6,8,37] =  363;
  cost[6,9,37] =  284;
  cost[6,10,37] =  124;
  cost[6,11,37] =  111;
  cost[6,12,37] =  198;
  cost[6,13,37] =  27;
  cost[6,14,37] =  232;
  cost[6,15,37] =  120;
  cost[6,16,37] =  97;
  cost[6,17,37] =  326;
  cost[6,18,37] =  137;
  cost[6,19,37] =  312;
  cost[6,20,37] =  76;
  cost[6,21,37] =  207;
  cost[7,0,37] =  85;
  cost[7,1,37] =  319;
  cost[7,2,37] =  271;
  cost[7,3,37] =  94;
  cost[7,4,37] =  332;
  cost[7,5,37] =  365;
  cost[7,6,37] =  429;
  cost[7,7,37] =  0;
  cost[7,8,37] =  225;
  cost[7,9,37] =  274;
  cost[7,10,37] =  476;
  cost[7,11,37] =  153;
  cost[7,12,37] =  268;
  cost[7,13,37] =  295;
  cost[7,14,37] =  10;
  cost[7,15,37] =  463;
  cost[7,16,37] =  470;
  cost[7,17,37] =  479;
  cost[7,18,37] =  8;
  cost[7,19,37] =  474;
  cost[7,20,37] =  0;
  cost[7,21,37] =  370;
  cost[8,0,37] =  357;
  cost[8,1,37] =  76;
  cost[8,2,37] =  334;
  cost[8,3,37] =  145;
  cost[8,4,37] =  433;
  cost[8,5,37] =  148;
  cost[8,6,37] =  363;
  cost[8,7,37] =  225;
  cost[8,8,37] =  0;
  cost[8,9,37] =  429;
  cost[8,10,37] =  250;
  cost[8,11,37] =  230;
  cost[8,12,37] =  70;
  cost[8,13,37] =  361;
  cost[8,14,37] =  428;
  cost[8,15,37] =  97;
  cost[8,16,37] =  109;
  cost[8,17,37] =  65;
  cost[8,18,37] =  194;
  cost[8,19,37] =  435;
  cost[8,20,37] =  203;
  cost[8,21,37] =  23;
  cost[9,0,37] =  26;
  cost[9,1,37] =  170;
  cost[9,2,37] =  199;
  cost[9,3,37] =  140;
  cost[9,4,37] =  424;
  cost[9,5,37] =  66;
  cost[9,6,37] =  284;
  cost[9,7,37] =  274;
  cost[9,8,37] =  429;
  cost[9,9,37] =  0;
  cost[9,10,37] =  411;
  cost[9,11,37] =  218;
  cost[9,12,37] =  253;
  cost[9,13,37] =  201;
  cost[9,14,37] =  210;
  cost[9,15,37] =  407;
  cost[9,16,37] =  470;
  cost[9,17,37] =  22;
  cost[9,18,37] =  418;
  cost[9,19,37] =  450;
  cost[9,20,37] =  8;
  cost[9,21,37] =  413;
  cost[10,0,37] =  89;
  cost[10,1,37] =  452;
  cost[10,2,37] =  118;
  cost[10,3,37] =  53;
  cost[10,4,37] =  1;
  cost[10,5,37] =  281;
  cost[10,6,37] =  124;
  cost[10,7,37] =  476;
  cost[10,8,37] =  250;
  cost[10,9,37] =  411;
  cost[10,10,37] =  0;
  cost[10,11,37] =  483;
  cost[10,12,37] =  414;
  cost[10,13,37] =  345;
  cost[10,14,37] =  428;
  cost[10,15,37] =  360;
  cost[10,16,37] =  111;
  cost[10,17,37] =  175;
  cost[10,18,37] =  430;
  cost[10,19,37] =  472;
  cost[10,20,37] =  120;
  cost[10,21,37] =  43;
  cost[11,0,37] =  467;
  cost[11,1,37] =  143;
  cost[11,2,37] =  442;
  cost[11,3,37] =  149;
  cost[11,4,37] =  330;
  cost[11,5,37] =  412;
  cost[11,6,37] =  111;
  cost[11,7,37] =  153;
  cost[11,8,37] =  230;
  cost[11,9,37] =  218;
  cost[11,10,37] =  483;
  cost[11,11,37] =  0;
  cost[11,12,37] =  186;
  cost[11,13,37] =  238;
  cost[11,14,37] =  49;
  cost[11,15,37] =  389;
  cost[11,16,37] =  262;
  cost[11,17,37] =  77;
  cost[11,18,37] =  316;
  cost[11,19,37] =  480;
  cost[11,20,37] =  331;
  cost[11,21,37] =  33;
  cost[12,0,37] =  246;
  cost[12,1,37] =  425;
  cost[12,2,37] =  376;
  cost[12,3,37] =  398;
  cost[12,4,37] =  179;
  cost[12,5,37] =  478;
  cost[12,6,37] =  198;
  cost[12,7,37] =  268;
  cost[12,8,37] =  70;
  cost[12,9,37] =  253;
  cost[12,10,37] =  414;
  cost[12,11,37] =  186;
  cost[12,12,37] =  0;
  cost[12,13,37] =  255;
  cost[12,14,37] =  20;
  cost[12,15,37] =  229;
  cost[12,16,37] =  190;
  cost[12,17,37] =  470;
  cost[12,18,37] =  237;
  cost[12,19,37] =  120;
  cost[12,20,37] =  445;
  cost[12,21,37] =  237;
  cost[13,0,37] =  91;
  cost[13,1,37] =  443;
  cost[13,2,37] =  13;
  cost[13,3,37] =  480;
  cost[13,4,37] =  231;
  cost[13,5,37] =  303;
  cost[13,6,37] =  27;
  cost[13,7,37] =  295;
  cost[13,8,37] =  361;
  cost[13,9,37] =  201;
  cost[13,10,37] =  345;
  cost[13,11,37] =  238;
  cost[13,12,37] =  255;
  cost[13,13,37] =  0;
  cost[13,14,37] =  307;
  cost[13,15,37] =  181;
  cost[13,16,37] =  410;
  cost[13,17,37] =  418;
  cost[13,18,37] =  357;
  cost[13,19,37] =  357;
  cost[13,20,37] =  407;
  cost[13,21,37] =  477;
  cost[14,0,37] =  472;
  cost[14,1,37] =  83;
  cost[14,2,37] =  120;
  cost[14,3,37] =  400;
  cost[14,4,37] =  397;
  cost[14,5,37] =  340;
  cost[14,6,37] =  232;
  cost[14,7,37] =  10;
  cost[14,8,37] =  428;
  cost[14,9,37] =  210;
  cost[14,10,37] =  428;
  cost[14,11,37] =  49;
  cost[14,12,37] =  20;
  cost[14,13,37] =  307;
  cost[14,14,37] =  0;
  cost[14,15,37] =  21;
  cost[14,16,37] =  179;
  cost[14,17,37] =  155;
  cost[14,18,37] =  71;
  cost[14,19,37] =  85;
  cost[14,20,37] =  417;
  cost[14,21,37] =  149;
  cost[15,0,37] =  338;
  cost[15,1,37] =  85;
  cost[15,2,37] =  403;
  cost[15,3,37] =  263;
  cost[15,4,37] =  386;
  cost[15,5,37] =  194;
  cost[15,6,37] =  120;
  cost[15,7,37] =  463;
  cost[15,8,37] =  97;
  cost[15,9,37] =  407;
  cost[15,10,37] =  360;
  cost[15,11,37] =  389;
  cost[15,12,37] =  229;
  cost[15,13,37] =  181;
  cost[15,14,37] =  21;
  cost[15,15,37] =  0;
  cost[15,16,37] =  413;
  cost[15,17,37] =  481;
  cost[15,18,37] =  435;
  cost[15,19,37] =  136;
  cost[15,20,37] =  253;
  cost[15,21,37] =  455;
  cost[16,0,37] =  284;
  cost[16,1,37] =  462;
  cost[16,2,37] =  153;
  cost[16,3,37] =  412;
  cost[16,4,37] =  121;
  cost[16,5,37] =  174;
  cost[16,6,37] =  97;
  cost[16,7,37] =  470;
  cost[16,8,37] =  109;
  cost[16,9,37] =  470;
  cost[16,10,37] =  111;
  cost[16,11,37] =  262;
  cost[16,12,37] =  190;
  cost[16,13,37] =  410;
  cost[16,14,37] =  179;
  cost[16,15,37] =  413;
  cost[16,16,37] =  0;
  cost[16,17,37] =  443;
  cost[16,18,37] =  442;
  cost[16,19,37] =  119;
  cost[16,20,37] =  79;
  cost[16,21,37] =  403;
  cost[17,0,37] =  340;
  cost[17,1,37] =  168;
  cost[17,2,37] =  380;
  cost[17,3,37] =  21;
  cost[17,4,37] =  406;
  cost[17,5,37] =  468;
  cost[17,6,37] =  326;
  cost[17,7,37] =  479;
  cost[17,8,37] =  65;
  cost[17,9,37] =  22;
  cost[17,10,37] =  175;
  cost[17,11,37] =  77;
  cost[17,12,37] =  470;
  cost[17,13,37] =  418;
  cost[17,14,37] =  155;
  cost[17,15,37] =  481;
  cost[17,16,37] =  443;
  cost[17,17,37] =  0;
  cost[17,18,37] =  130;
  cost[17,19,37] =  227;
  cost[17,20,37] =  54;
  cost[17,21,37] =  56;
  cost[18,0,37] =  229;
  cost[18,1,37] =  442;
  cost[18,2,37] =  239;
  cost[18,3,37] =  412;
  cost[18,4,37] =  70;
  cost[18,5,37] =  29;
  cost[18,6,37] =  137;
  cost[18,7,37] =  8;
  cost[18,8,37] =  194;
  cost[18,9,37] =  418;
  cost[18,10,37] =  430;
  cost[18,11,37] =  316;
  cost[18,12,37] =  237;
  cost[18,13,37] =  357;
  cost[18,14,37] =  71;
  cost[18,15,37] =  435;
  cost[18,16,37] =  442;
  cost[18,17,37] =  130;
  cost[18,18,37] =  0;
  cost[18,19,37] =  411;
  cost[18,20,37] =  414;
  cost[18,21,37] =  85;
  cost[19,0,37] =  49;
  cost[19,1,37] =  4;
  cost[19,2,37] =  229;
  cost[19,3,37] =  200;
  cost[19,4,37] =  93;
  cost[19,5,37] =  4;
  cost[19,6,37] =  312;
  cost[19,7,37] =  474;
  cost[19,8,37] =  435;
  cost[19,9,37] =  450;
  cost[19,10,37] =  472;
  cost[19,11,37] =  480;
  cost[19,12,37] =  120;
  cost[19,13,37] =  357;
  cost[19,14,37] =  85;
  cost[19,15,37] =  136;
  cost[19,16,37] =  119;
  cost[19,17,37] =  227;
  cost[19,18,37] =  411;
  cost[19,19,37] =  0;
  cost[19,20,37] =  331;
  cost[19,21,37] =  107;
  cost[20,0,37] =  330;
  cost[20,1,37] =  257;
  cost[20,2,37] =  67;
  cost[20,3,37] =  355;
  cost[20,4,37] =  16;
  cost[20,5,37] =  5;
  cost[20,6,37] =  76;
  cost[20,7,37] =  0;
  cost[20,8,37] =  203;
  cost[20,9,37] =  8;
  cost[20,10,37] =  120;
  cost[20,11,37] =  331;
  cost[20,12,37] =  445;
  cost[20,13,37] =  407;
  cost[20,14,37] =  417;
  cost[20,15,37] =  253;
  cost[20,16,37] =  79;
  cost[20,17,37] =  54;
  cost[20,18,37] =  414;
  cost[20,19,37] =  331;
  cost[20,20,37] =  0;
  cost[20,21,37] =  2;
  cost[21,0,37] =  107;
  cost[21,1,37] =  426;
  cost[21,2,37] =  207;
  cost[21,3,37] =  127;
  cost[21,4,37] =  215;
  cost[21,5,37] =  361;
  cost[21,6,37] =  207;
  cost[21,7,37] =  370;
  cost[21,8,37] =  23;
  cost[21,9,37] =  413;
  cost[21,10,37] =  43;
  cost[21,11,37] =  33;
  cost[21,12,37] =  237;
  cost[21,13,37] =  477;
  cost[21,14,37] =  149;
  cost[21,15,37] =  455;
  cost[21,16,37] =  403;
  cost[21,17,37] =  56;
  cost[21,18,37] =  85;
  cost[21,19,37] =  107;
  cost[21,20,37] =  2;
  cost[21,21,37] =  0;
  cost[0,0,38] =  0;
  cost[0,1,38] =  420;
  cost[0,2,38] =  328;
  cost[0,3,38] =  103;
  cost[0,4,38] =  349;
  cost[0,5,38] =  325;
  cost[0,6,38] =  54;
  cost[0,7,38] =  2;
  cost[0,8,38] =  95;
  cost[0,9,38] =  26;
  cost[0,10,38] =  368;
  cost[0,11,38] =  54;
  cost[0,12,38] =  469;
  cost[0,13,38] =  3;
  cost[0,14,38] =  134;
  cost[0,15,38] =  389;
  cost[0,16,38] =  359;
  cost[0,17,38] =  264;
  cost[0,18,38] =  132;
  cost[0,19,38] =  414;
  cost[0,20,38] =  321;
  cost[0,21,38] =  294;
  cost[1,0,38] =  420;
  cost[1,1,38] =  0;
  cost[1,2,38] =  251;
  cost[1,3,38] =  379;
  cost[1,4,38] =  263;
  cost[1,5,38] =  98;
  cost[1,6,38] =  2;
  cost[1,7,38] =  363;
  cost[1,8,38] =  100;
  cost[1,9,38] =  181;
  cost[1,10,38] =  65;
  cost[1,11,38] =  36;
  cost[1,12,38] =  25;
  cost[1,13,38] =  168;
  cost[1,14,38] =  386;
  cost[1,15,38] =  351;
  cost[1,16,38] =  223;
  cost[1,17,38] =  389;
  cost[1,18,38] =  446;
  cost[1,19,38] =  250;
  cost[1,20,38] =  273;
  cost[1,21,38] =  17;
  cost[2,0,38] =  328;
  cost[2,1,38] =  251;
  cost[2,2,38] =  0;
  cost[2,3,38] =  276;
  cost[2,4,38] =  151;
  cost[2,5,38] =  141;
  cost[2,6,38] =  152;
  cost[2,7,38] =  415;
  cost[2,8,38] =  273;
  cost[2,9,38] =  82;
  cost[2,10,38] =  253;
  cost[2,11,38] =  83;
  cost[2,12,38] =  424;
  cost[2,13,38] =  20;
  cost[2,14,38] =  462;
  cost[2,15,38] =  203;
  cost[2,16,38] =  118;
  cost[2,17,38] =  465;
  cost[2,18,38] =  83;
  cost[2,19,38] =  219;
  cost[2,20,38] =  163;
  cost[2,21,38] =  148;
  cost[3,0,38] =  103;
  cost[3,1,38] =  379;
  cost[3,2,38] =  276;
  cost[3,3,38] =  0;
  cost[3,4,38] =  188;
  cost[3,5,38] =  317;
  cost[3,6,38] =  159;
  cost[3,7,38] =  56;
  cost[3,8,38] =  57;
  cost[3,9,38] =  64;
  cost[3,10,38] =  18;
  cost[3,11,38] =  308;
  cost[3,12,38] =  337;
  cost[3,13,38] =  36;
  cost[3,14,38] =  60;
  cost[3,15,38] =  130;
  cost[3,16,38] =  187;
  cost[3,17,38] =  201;
  cost[3,18,38] =  282;
  cost[3,19,38] =  119;
  cost[3,20,38] =  474;
  cost[3,21,38] =  365;
  cost[4,0,38] =  349;
  cost[4,1,38] =  263;
  cost[4,2,38] =  151;
  cost[4,3,38] =  188;
  cost[4,4,38] =  0;
  cost[4,5,38] =  74;
  cost[4,6,38] =  306;
  cost[4,7,38] =  392;
  cost[4,8,38] =  53;
  cost[4,9,38] =  25;
  cost[4,10,38] =  27;
  cost[4,11,38] =  35;
  cost[4,12,38] =  109;
  cost[4,13,38] =  247;
  cost[4,14,38] =  198;
  cost[4,15,38] =  258;
  cost[4,16,38] =  19;
  cost[4,17,38] =  386;
  cost[4,18,38] =  92;
  cost[4,19,38] =  178;
  cost[4,20,38] =  443;
  cost[4,21,38] =  149;
  cost[5,0,38] =  325;
  cost[5,1,38] =  98;
  cost[5,2,38] =  141;
  cost[5,3,38] =  317;
  cost[5,4,38] =  74;
  cost[5,5,38] =  0;
  cost[5,6,38] =  462;
  cost[5,7,38] =  457;
  cost[5,8,38] =  96;
  cost[5,9,38] =  14;
  cost[5,10,38] =  33;
  cost[5,11,38] =  226;
  cost[5,12,38] =  201;
  cost[5,13,38] =  235;
  cost[5,14,38] =  24;
  cost[5,15,38] =  321;
  cost[5,16,38] =  226;
  cost[5,17,38] =  390;
  cost[5,18,38] =  209;
  cost[5,19,38] =  300;
  cost[5,20,38] =  212;
  cost[5,21,38] =  118;
  cost[6,0,38] =  54;
  cost[6,1,38] =  2;
  cost[6,2,38] =  152;
  cost[6,3,38] =  159;
  cost[6,4,38] =  306;
  cost[6,5,38] =  462;
  cost[6,6,38] =  0;
  cost[6,7,38] =  238;
  cost[6,8,38] =  145;
  cost[6,9,38] =  388;
  cost[6,10,38] =  348;
  cost[6,11,38] =  392;
  cost[6,12,38] =  102;
  cost[6,13,38] =  122;
  cost[6,14,38] =  411;
  cost[6,15,38] =  5;
  cost[6,16,38] =  214;
  cost[6,17,38] =  106;
  cost[6,18,38] =  449;
  cost[6,19,38] =  364;
  cost[6,20,38] =  349;
  cost[6,21,38] =  427;
  cost[7,0,38] =  2;
  cost[7,1,38] =  363;
  cost[7,2,38] =  415;
  cost[7,3,38] =  56;
  cost[7,4,38] =  392;
  cost[7,5,38] =  457;
  cost[7,6,38] =  238;
  cost[7,7,38] =  0;
  cost[7,8,38] =  445;
  cost[7,9,38] =  441;
  cost[7,10,38] =  371;
  cost[7,11,38] =  187;
  cost[7,12,38] =  159;
  cost[7,13,38] =  123;
  cost[7,14,38] =  212;
  cost[7,15,38] =  480;
  cost[7,16,38] =  349;
  cost[7,17,38] =  119;
  cost[7,18,38] =  206;
  cost[7,19,38] =  165;
  cost[7,20,38] =  331;
  cost[7,21,38] =  324;
  cost[8,0,38] =  95;
  cost[8,1,38] =  100;
  cost[8,2,38] =  273;
  cost[8,3,38] =  57;
  cost[8,4,38] =  53;
  cost[8,5,38] =  96;
  cost[8,6,38] =  145;
  cost[8,7,38] =  445;
  cost[8,8,38] =  0;
  cost[8,9,38] =  86;
  cost[8,10,38] =  469;
  cost[8,11,38] =  424;
  cost[8,12,38] =  434;
  cost[8,13,38] =  378;
  cost[8,14,38] =  43;
  cost[8,15,38] =  72;
  cost[8,16,38] =  306;
  cost[8,17,38] =  49;
  cost[8,18,38] =  287;
  cost[8,19,38] =  412;
  cost[8,20,38] =  14;
  cost[8,21,38] =  167;
  cost[9,0,38] =  26;
  cost[9,1,38] =  181;
  cost[9,2,38] =  82;
  cost[9,3,38] =  64;
  cost[9,4,38] =  25;
  cost[9,5,38] =  14;
  cost[9,6,38] =  388;
  cost[9,7,38] =  441;
  cost[9,8,38] =  86;
  cost[9,9,38] =  0;
  cost[9,10,38] =  442;
  cost[9,11,38] =  21;
  cost[9,12,38] =  239;
  cost[9,13,38] =  399;
  cost[9,14,38] =  393;
  cost[9,15,38] =  427;
  cost[9,16,38] =  75;
  cost[9,17,38] =  32;
  cost[9,18,38] =  155;
  cost[9,19,38] =  72;
  cost[9,20,38] =  382;
  cost[9,21,38] =  275;
  cost[10,0,38] =  368;
  cost[10,1,38] =  65;
  cost[10,2,38] =  253;
  cost[10,3,38] =  18;
  cost[10,4,38] =  27;
  cost[10,5,38] =  33;
  cost[10,6,38] =  348;
  cost[10,7,38] =  371;
  cost[10,8,38] =  469;
  cost[10,9,38] =  442;
  cost[10,10,38] =  0;
  cost[10,11,38] =  63;
  cost[10,12,38] =  123;
  cost[10,13,38] =  119;
  cost[10,14,38] =  99;
  cost[10,15,38] =  209;
  cost[10,16,38] =  105;
  cost[10,17,38] =  39;
  cost[10,18,38] =  160;
  cost[10,19,38] =  483;
  cost[10,20,38] =  82;
  cost[10,21,38] =  233;
  cost[11,0,38] =  54;
  cost[11,1,38] =  36;
  cost[11,2,38] =  83;
  cost[11,3,38] =  308;
  cost[11,4,38] =  35;
  cost[11,5,38] =  226;
  cost[11,6,38] =  392;
  cost[11,7,38] =  187;
  cost[11,8,38] =  424;
  cost[11,9,38] =  21;
  cost[11,10,38] =  63;
  cost[11,11,38] =  0;
  cost[11,12,38] =  131;
  cost[11,13,38] =  36;
  cost[11,14,38] =  233;
  cost[11,15,38] =  146;
  cost[11,16,38] =  204;
  cost[11,17,38] =  27;
  cost[11,18,38] =  104;
  cost[11,19,38] =  226;
  cost[11,20,38] =  267;
  cost[11,21,38] =  20;
  cost[12,0,38] =  469;
  cost[12,1,38] =  25;
  cost[12,2,38] =  424;
  cost[12,3,38] =  337;
  cost[12,4,38] =  109;
  cost[12,5,38] =  201;
  cost[12,6,38] =  102;
  cost[12,7,38] =  159;
  cost[12,8,38] =  434;
  cost[12,9,38] =  239;
  cost[12,10,38] =  123;
  cost[12,11,38] =  131;
  cost[12,12,38] =  0;
  cost[12,13,38] =  210;
  cost[12,14,38] =  95;
  cost[12,15,38] =  168;
  cost[12,16,38] =  365;
  cost[12,17,38] =  168;
  cost[12,18,38] =  66;
  cost[12,19,38] =  157;
  cost[12,20,38] =  447;
  cost[12,21,38] =  130;
  cost[13,0,38] =  3;
  cost[13,1,38] =  168;
  cost[13,2,38] =  20;
  cost[13,3,38] =  36;
  cost[13,4,38] =  247;
  cost[13,5,38] =  235;
  cost[13,6,38] =  122;
  cost[13,7,38] =  123;
  cost[13,8,38] =  378;
  cost[13,9,38] =  399;
  cost[13,10,38] =  119;
  cost[13,11,38] =  36;
  cost[13,12,38] =  210;
  cost[13,13,38] =  0;
  cost[13,14,38] =  83;
  cost[13,15,38] =  229;
  cost[13,16,38] =  5;
  cost[13,17,38] =  188;
  cost[13,18,38] =  268;
  cost[13,19,38] =  165;
  cost[13,20,38] =  187;
  cost[13,21,38] =  351;
  cost[14,0,38] =  134;
  cost[14,1,38] =  386;
  cost[14,2,38] =  462;
  cost[14,3,38] =  60;
  cost[14,4,38] =  198;
  cost[14,5,38] =  24;
  cost[14,6,38] =  411;
  cost[14,7,38] =  212;
  cost[14,8,38] =  43;
  cost[14,9,38] =  393;
  cost[14,10,38] =  99;
  cost[14,11,38] =  233;
  cost[14,12,38] =  95;
  cost[14,13,38] =  83;
  cost[14,14,38] =  0;
  cost[14,15,38] =  9;
  cost[14,16,38] =  482;
  cost[14,17,38] =  435;
  cost[14,18,38] =  243;
  cost[14,19,38] =  145;
  cost[14,20,38] =  156;
  cost[14,21,38] =  270;
  cost[15,0,38] =  389;
  cost[15,1,38] =  351;
  cost[15,2,38] =  203;
  cost[15,3,38] =  130;
  cost[15,4,38] =  258;
  cost[15,5,38] =  321;
  cost[15,6,38] =  5;
  cost[15,7,38] =  480;
  cost[15,8,38] =  72;
  cost[15,9,38] =  427;
  cost[15,10,38] =  209;
  cost[15,11,38] =  146;
  cost[15,12,38] =  168;
  cost[15,13,38] =  229;
  cost[15,14,38] =  9;
  cost[15,15,38] =  0;
  cost[15,16,38] =  382;
  cost[15,17,38] =  53;
  cost[15,18,38] =  269;
  cost[15,19,38] =  34;
  cost[15,20,38] =  264;
  cost[15,21,38] =  365;
  cost[16,0,38] =  359;
  cost[16,1,38] =  223;
  cost[16,2,38] =  118;
  cost[16,3,38] =  187;
  cost[16,4,38] =  19;
  cost[16,5,38] =  226;
  cost[16,6,38] =  214;
  cost[16,7,38] =  349;
  cost[16,8,38] =  306;
  cost[16,9,38] =  75;
  cost[16,10,38] =  105;
  cost[16,11,38] =  204;
  cost[16,12,38] =  365;
  cost[16,13,38] =  5;
  cost[16,14,38] =  482;
  cost[16,15,38] =  382;
  cost[16,16,38] =  0;
  cost[16,17,38] =  146;
  cost[16,18,38] =  50;
  cost[16,19,38] =  269;
  cost[16,20,38] =  303;
  cost[16,21,38] =  14;
  cost[17,0,38] =  264;
  cost[17,1,38] =  389;
  cost[17,2,38] =  465;
  cost[17,3,38] =  201;
  cost[17,4,38] =  386;
  cost[17,5,38] =  390;
  cost[17,6,38] =  106;
  cost[17,7,38] =  119;
  cost[17,8,38] =  49;
  cost[17,9,38] =  32;
  cost[17,10,38] =  39;
  cost[17,11,38] =  27;
  cost[17,12,38] =  168;
  cost[17,13,38] =  188;
  cost[17,14,38] =  435;
  cost[17,15,38] =  53;
  cost[17,16,38] =  146;
  cost[17,17,38] =  0;
  cost[17,18,38] =  99;
  cost[17,19,38] =  97;
  cost[17,20,38] =  145;
  cost[17,21,38] =  104;
  cost[18,0,38] =  132;
  cost[18,1,38] =  446;
  cost[18,2,38] =  83;
  cost[18,3,38] =  282;
  cost[18,4,38] =  92;
  cost[18,5,38] =  209;
  cost[18,6,38] =  449;
  cost[18,7,38] =  206;
  cost[18,8,38] =  287;
  cost[18,9,38] =  155;
  cost[18,10,38] =  160;
  cost[18,11,38] =  104;
  cost[18,12,38] =  66;
  cost[18,13,38] =  268;
  cost[18,14,38] =  243;
  cost[18,15,38] =  269;
  cost[18,16,38] =  50;
  cost[18,17,38] =  99;
  cost[18,18,38] =  0;
  cost[18,19,38] =  414;
  cost[18,20,38] =  270;
  cost[18,21,38] =  473;
  cost[19,0,38] =  414;
  cost[19,1,38] =  250;
  cost[19,2,38] =  219;
  cost[19,3,38] =  119;
  cost[19,4,38] =  178;
  cost[19,5,38] =  300;
  cost[19,6,38] =  364;
  cost[19,7,38] =  165;
  cost[19,8,38] =  412;
  cost[19,9,38] =  72;
  cost[19,10,38] =  483;
  cost[19,11,38] =  226;
  cost[19,12,38] =  157;
  cost[19,13,38] =  165;
  cost[19,14,38] =  145;
  cost[19,15,38] =  34;
  cost[19,16,38] =  269;
  cost[19,17,38] =  97;
  cost[19,18,38] =  414;
  cost[19,19,38] =  0;
  cost[19,20,38] =  185;
  cost[19,21,38] =  483;
  cost[20,0,38] =  321;
  cost[20,1,38] =  273;
  cost[20,2,38] =  163;
  cost[20,3,38] =  474;
  cost[20,4,38] =  443;
  cost[20,5,38] =  212;
  cost[20,6,38] =  349;
  cost[20,7,38] =  331;
  cost[20,8,38] =  14;
  cost[20,9,38] =  382;
  cost[20,10,38] =  82;
  cost[20,11,38] =  267;
  cost[20,12,38] =  447;
  cost[20,13,38] =  187;
  cost[20,14,38] =  156;
  cost[20,15,38] =  264;
  cost[20,16,38] =  303;
  cost[20,17,38] =  145;
  cost[20,18,38] =  270;
  cost[20,19,38] =  185;
  cost[20,20,38] =  0;
  cost[20,21,38] =  137;
  cost[21,0,38] =  294;
  cost[21,1,38] =  17;
  cost[21,2,38] =  148;
  cost[21,3,38] =  365;
  cost[21,4,38] =  149;
  cost[21,5,38] =  118;
  cost[21,6,38] =  427;
  cost[21,7,38] =  324;
  cost[21,8,38] =  167;
  cost[21,9,38] =  275;
  cost[21,10,38] =  233;
  cost[21,11,38] =  20;
  cost[21,12,38] =  130;
  cost[21,13,38] =  351;
  cost[21,14,38] =  270;
  cost[21,15,38] =  365;
  cost[21,16,38] =  14;
  cost[21,17,38] =  104;
  cost[21,18,38] =  473;
  cost[21,19,38] =  483;
  cost[21,20,38] =  137;
  cost[21,21,38] =  0;
  cost[0,0,39] =  0;
  cost[0,1,39] =  293;
  cost[0,2,39] =  29;
  cost[0,3,39] =  191;
  cost[0,4,39] =  191;
  cost[0,5,39] =  83;
  cost[0,6,39] =  460;
  cost[0,7,39] =  225;
  cost[0,8,39] =  347;
  cost[0,9,39] =  342;
  cost[0,10,39] =  428;
  cost[0,11,39] =  9;
  cost[0,12,39] =  392;
  cost[0,13,39] =  214;
  cost[0,14,39] =  312;
  cost[0,15,39] =  406;
  cost[0,16,39] =  131;
  cost[0,17,39] =  411;
  cost[0,18,39] =  19;
  cost[0,19,39] =  277;
  cost[0,20,39] =  32;
  cost[0,21,39] =  305;
  cost[1,0,39] =  293;
  cost[1,1,39] =  0;
  cost[1,2,39] =  303;
  cost[1,3,39] =  295;
  cost[1,4,39] =  5;
  cost[1,5,39] =  4;
  cost[1,6,39] =  294;
  cost[1,7,39] =  286;
  cost[1,8,39] =  142;
  cost[1,9,39] =  53;
  cost[1,10,39] =  228;
  cost[1,11,39] =  435;
  cost[1,12,39] =  82;
  cost[1,13,39] =  419;
  cost[1,14,39] =  142;
  cost[1,15,39] =  165;
  cost[1,16,39] =  396;
  cost[1,17,39] =  368;
  cost[1,18,39] =  29;
  cost[1,19,39] =  254;
  cost[1,20,39] =  313;
  cost[1,21,39] =  38;
  cost[2,0,39] =  29;
  cost[2,1,39] =  303;
  cost[2,2,39] =  0;
  cost[2,3,39] =  44;
  cost[2,4,39] =  351;
  cost[2,5,39] =  84;
  cost[2,6,39] =  175;
  cost[2,7,39] =  279;
  cost[2,8,39] =  104;
  cost[2,9,39] =  453;
  cost[2,10,39] =  311;
  cost[2,11,39] =  410;
  cost[2,12,39] =  176;
  cost[2,13,39] =  131;
  cost[2,14,39] =  221;
  cost[2,15,39] =  182;
  cost[2,16,39] =  135;
  cost[2,17,39] =  32;
  cost[2,18,39] =  468;
  cost[2,19,39] =  278;
  cost[2,20,39] =  85;
  cost[2,21,39] =  212;
  cost[3,0,39] =  191;
  cost[3,1,39] =  295;
  cost[3,2,39] =  44;
  cost[3,3,39] =  0;
  cost[3,4,39] =  168;
  cost[3,5,39] =  148;
  cost[3,6,39] =  372;
  cost[3,7,39] =  334;
  cost[3,8,39] =  60;
  cost[3,9,39] =  257;
  cost[3,10,39] =  363;
  cost[3,11,39] =  314;
  cost[3,12,39] =  87;
  cost[3,13,39] =  402;
  cost[3,14,39] =  476;
  cost[3,15,39] =  131;
  cost[3,16,39] =  269;
  cost[3,17,39] =  77;
  cost[3,18,39] =  307;
  cost[3,19,39] =  64;
  cost[3,20,39] =  182;
  cost[3,21,39] =  276;
  cost[4,0,39] =  191;
  cost[4,1,39] =  5;
  cost[4,2,39] =  351;
  cost[4,3,39] =  168;
  cost[4,4,39] =  0;
  cost[4,5,39] =  108;
  cost[4,6,39] =  453;
  cost[4,7,39] =  23;
  cost[4,8,39] =  330;
  cost[4,9,39] =  151;
  cost[4,10,39] =  159;
  cost[4,11,39] =  363;
  cost[4,12,39] =  136;
  cost[4,13,39] =  437;
  cost[4,14,39] =  448;
  cost[4,15,39] =  348;
  cost[4,16,39] =  183;
  cost[4,17,39] =  133;
  cost[4,18,39] =  13;
  cost[4,19,39] =  71;
  cost[4,20,39] =  467;
  cost[4,21,39] =  73;
  cost[5,0,39] =  83;
  cost[5,1,39] =  4;
  cost[5,2,39] =  84;
  cost[5,3,39] =  148;
  cost[5,4,39] =  108;
  cost[5,5,39] =  0;
  cost[5,6,39] =  346;
  cost[5,7,39] =  387;
  cost[5,8,39] =  415;
  cost[5,9,39] =  265;
  cost[5,10,39] =  380;
  cost[5,11,39] =  63;
  cost[5,12,39] =  50;
  cost[5,13,39] =  458;
  cost[5,14,39] =  371;
  cost[5,15,39] =  115;
  cost[5,16,39] =  156;
  cost[5,17,39] =  163;
  cost[5,18,39] =  8;
  cost[5,19,39] =  264;
  cost[5,20,39] =  133;
  cost[5,21,39] =  31;
  cost[6,0,39] =  460;
  cost[6,1,39] =  294;
  cost[6,2,39] =  175;
  cost[6,3,39] =  372;
  cost[6,4,39] =  453;
  cost[6,5,39] =  346;
  cost[6,6,39] =  0;
  cost[6,7,39] =  284;
  cost[6,8,39] =  191;
  cost[6,9,39] =  474;
  cost[6,10,39] =  420;
  cost[6,11,39] =  144;
  cost[6,12,39] =  439;
  cost[6,13,39] =  285;
  cost[6,14,39] =  327;
  cost[6,15,39] =  88;
  cost[6,16,39] =  298;
  cost[6,17,39] =  399;
  cost[6,18,39] =  72;
  cost[6,19,39] =  372;
  cost[6,20,39] =  244;
  cost[6,21,39] =  419;
  cost[7,0,39] =  225;
  cost[7,1,39] =  286;
  cost[7,2,39] =  279;
  cost[7,3,39] =  334;
  cost[7,4,39] =  23;
  cost[7,5,39] =  387;
  cost[7,6,39] =  284;
  cost[7,7,39] =  0;
  cost[7,8,39] =  176;
  cost[7,9,39] =  200;
  cost[7,10,39] =  172;
  cost[7,11,39] =  240;
  cost[7,12,39] =  251;
  cost[7,13,39] =  146;
  cost[7,14,39] =  127;
  cost[7,15,39] =  366;
  cost[7,16,39] =  303;
  cost[7,17,39] =  291;
  cost[7,18,39] =  374;
  cost[7,19,39] =  83;
  cost[7,20,39] =  424;
  cost[7,21,39] =  406;
  cost[8,0,39] =  347;
  cost[8,1,39] =  142;
  cost[8,2,39] =  104;
  cost[8,3,39] =  60;
  cost[8,4,39] =  330;
  cost[8,5,39] =  415;
  cost[8,6,39] =  191;
  cost[8,7,39] =  176;
  cost[8,8,39] =  0;
  cost[8,9,39] =  225;
  cost[8,10,39] =  113;
  cost[8,11,39] =  185;
  cost[8,12,39] =  161;
  cost[8,13,39] =  257;
  cost[8,14,39] =  141;
  cost[8,15,39] =  447;
  cost[8,16,39] =  101;
  cost[8,17,39] =  229;
  cost[8,18,39] =  262;
  cost[8,19,39] =  17;
  cost[8,20,39] =  301;
  cost[8,21,39] =  151;
  cost[9,0,39] =  342;
  cost[9,1,39] =  53;
  cost[9,2,39] =  453;
  cost[9,3,39] =  257;
  cost[9,4,39] =  151;
  cost[9,5,39] =  265;
  cost[9,6,39] =  474;
  cost[9,7,39] =  200;
  cost[9,8,39] =  225;
  cost[9,9,39] =  0;
  cost[9,10,39] =  237;
  cost[9,11,39] =  427;
  cost[9,12,39] =  438;
  cost[9,13,39] =  437;
  cost[9,14,39] =  115;
  cost[9,15,39] =  194;
  cost[9,16,39] =  204;
  cost[9,17,39] =  262;
  cost[9,18,39] =  321;
  cost[9,19,39] =  86;
  cost[9,20,39] =  82;
  cost[9,21,39] =  128;
  cost[10,0,39] =  428;
  cost[10,1,39] =  228;
  cost[10,2,39] =  311;
  cost[10,3,39] =  363;
  cost[10,4,39] =  159;
  cost[10,5,39] =  380;
  cost[10,6,39] =  420;
  cost[10,7,39] =  172;
  cost[10,8,39] =  113;
  cost[10,9,39] =  237;
  cost[10,10,39] =  0;
  cost[10,11,39] =  166;
  cost[10,12,39] =  69;
  cost[10,13,39] =  383;
  cost[10,14,39] =  361;
  cost[10,15,39] =  294;
  cost[10,16,39] =  12;
  cost[10,17,39] =  62;
  cost[10,18,39] =  456;
  cost[10,19,39] =  270;
  cost[10,20,39] =  203;
  cost[10,21,39] =  420;
  cost[11,0,39] =  9;
  cost[11,1,39] =  435;
  cost[11,2,39] =  410;
  cost[11,3,39] =  314;
  cost[11,4,39] =  363;
  cost[11,5,39] =  63;
  cost[11,6,39] =  144;
  cost[11,7,39] =  240;
  cost[11,8,39] =  185;
  cost[11,9,39] =  427;
  cost[11,10,39] =  166;
  cost[11,11,39] =  0;
  cost[11,12,39] =  433;
  cost[11,13,39] =  198;
  cost[11,14,39] =  389;
  cost[11,15,39] =  251;
  cost[11,16,39] =  349;
  cost[11,17,39] =  167;
  cost[11,18,39] =  4;
  cost[11,19,39] =  293;
  cost[11,20,39] =  121;
  cost[11,21,39] =  441;
  cost[12,0,39] =  392;
  cost[12,1,39] =  82;
  cost[12,2,39] =  176;
  cost[12,3,39] =  87;
  cost[12,4,39] =  136;
  cost[12,5,39] =  50;
  cost[12,6,39] =  439;
  cost[12,7,39] =  251;
  cost[12,8,39] =  161;
  cost[12,9,39] =  438;
  cost[12,10,39] =  69;
  cost[12,11,39] =  433;
  cost[12,12,39] =  0;
  cost[12,13,39] =  316;
  cost[12,14,39] =  162;
  cost[12,15,39] =  188;
  cost[12,16,39] =  153;
  cost[12,17,39] =  248;
  cost[12,18,39] =  270;
  cost[12,19,39] =  282;
  cost[12,20,39] =  226;
  cost[12,21,39] =  436;
  cost[13,0,39] =  214;
  cost[13,1,39] =  419;
  cost[13,2,39] =  131;
  cost[13,3,39] =  402;
  cost[13,4,39] =  437;
  cost[13,5,39] =  458;
  cost[13,6,39] =  285;
  cost[13,7,39] =  146;
  cost[13,8,39] =  257;
  cost[13,9,39] =  437;
  cost[13,10,39] =  383;
  cost[13,11,39] =  198;
  cost[13,12,39] =  316;
  cost[13,13,39] =  0;
  cost[13,14,39] =  125;
  cost[13,15,39] =  313;
  cost[13,16,39] =  162;
  cost[13,17,39] =  138;
  cost[13,18,39] =  376;
  cost[13,19,39] =  135;
  cost[13,20,39] =  408;
  cost[13,21,39] =  96;
  cost[14,0,39] =  312;
  cost[14,1,39] =  142;
  cost[14,2,39] =  221;
  cost[14,3,39] =  476;
  cost[14,4,39] =  448;
  cost[14,5,39] =  371;
  cost[14,6,39] =  327;
  cost[14,7,39] =  127;
  cost[14,8,39] =  141;
  cost[14,9,39] =  115;
  cost[14,10,39] =  361;
  cost[14,11,39] =  389;
  cost[14,12,39] =  162;
  cost[14,13,39] =  125;
  cost[14,14,39] =  0;
  cost[14,15,39] =  297;
  cost[14,16,39] =  45;
  cost[14,17,39] =  270;
  cost[14,18,39] =  202;
  cost[14,19,39] =  297;
  cost[14,20,39] =  136;
  cost[14,21,39] =  370;
  cost[15,0,39] =  406;
  cost[15,1,39] =  165;
  cost[15,2,39] =  182;
  cost[15,3,39] =  131;
  cost[15,4,39] =  348;
  cost[15,5,39] =  115;
  cost[15,6,39] =  88;
  cost[15,7,39] =  366;
  cost[15,8,39] =  447;
  cost[15,9,39] =  194;
  cost[15,10,39] =  294;
  cost[15,11,39] =  251;
  cost[15,12,39] =  188;
  cost[15,13,39] =  313;
  cost[15,14,39] =  297;
  cost[15,15,39] =  0;
  cost[15,16,39] =  429;
  cost[15,17,39] =  8;
  cost[15,18,39] =  259;
  cost[15,19,39] =  354;
  cost[15,20,39] =  324;
  cost[15,21,39] =  422;
  cost[16,0,39] =  131;
  cost[16,1,39] =  396;
  cost[16,2,39] =  135;
  cost[16,3,39] =  269;
  cost[16,4,39] =  183;
  cost[16,5,39] =  156;
  cost[16,6,39] =  298;
  cost[16,7,39] =  303;
  cost[16,8,39] =  101;
  cost[16,9,39] =  204;
  cost[16,10,39] =  12;
  cost[16,11,39] =  349;
  cost[16,12,39] =  153;
  cost[16,13,39] =  162;
  cost[16,14,39] =  45;
  cost[16,15,39] =  429;
  cost[16,16,39] =  0;
  cost[16,17,39] =  478;
  cost[16,18,39] =  186;
  cost[16,19,39] =  328;
  cost[16,20,39] =  277;
  cost[16,21,39] =  413;
  cost[17,0,39] =  411;
  cost[17,1,39] =  368;
  cost[17,2,39] =  32;
  cost[17,3,39] =  77;
  cost[17,4,39] =  133;
  cost[17,5,39] =  163;
  cost[17,6,39] =  399;
  cost[17,7,39] =  291;
  cost[17,8,39] =  229;
  cost[17,9,39] =  262;
  cost[17,10,39] =  62;
  cost[17,11,39] =  167;
  cost[17,12,39] =  248;
  cost[17,13,39] =  138;
  cost[17,14,39] =  270;
  cost[17,15,39] =  8;
  cost[17,16,39] =  478;
  cost[17,17,39] =  0;
  cost[17,18,39] =  145;
  cost[17,19,39] =  54;
  cost[17,20,39] =  110;
  cost[17,21,39] =  308;
  cost[18,0,39] =  19;
  cost[18,1,39] =  29;
  cost[18,2,39] =  468;
  cost[18,3,39] =  307;
  cost[18,4,39] =  13;
  cost[18,5,39] =  8;
  cost[18,6,39] =  72;
  cost[18,7,39] =  374;
  cost[18,8,39] =  262;
  cost[18,9,39] =  321;
  cost[18,10,39] =  456;
  cost[18,11,39] =  4;
  cost[18,12,39] =  270;
  cost[18,13,39] =  376;
  cost[18,14,39] =  202;
  cost[18,15,39] =  259;
  cost[18,16,39] =  186;
  cost[18,17,39] =  145;
  cost[18,18,39] =  0;
  cost[18,19,39] =  2;
  cost[18,20,39] =  443;
  cost[18,21,39] =  117;
  cost[19,0,39] =  277;
  cost[19,1,39] =  254;
  cost[19,2,39] =  278;
  cost[19,3,39] =  64;
  cost[19,4,39] =  71;
  cost[19,5,39] =  264;
  cost[19,6,39] =  372;
  cost[19,7,39] =  83;
  cost[19,8,39] =  17;
  cost[19,9,39] =  86;
  cost[19,10,39] =  270;
  cost[19,11,39] =  293;
  cost[19,12,39] =  282;
  cost[19,13,39] =  135;
  cost[19,14,39] =  297;
  cost[19,15,39] =  354;
  cost[19,16,39] =  328;
  cost[19,17,39] =  54;
  cost[19,18,39] =  2;
  cost[19,19,39] =  0;
  cost[19,20,39] =  31;
  cost[19,21,39] =  414;
  cost[20,0,39] =  32;
  cost[20,1,39] =  313;
  cost[20,2,39] =  85;
  cost[20,3,39] =  182;
  cost[20,4,39] =  467;
  cost[20,5,39] =  133;
  cost[20,6,39] =  244;
  cost[20,7,39] =  424;
  cost[20,8,39] =  301;
  cost[20,9,39] =  82;
  cost[20,10,39] =  203;
  cost[20,11,39] =  121;
  cost[20,12,39] =  226;
  cost[20,13,39] =  408;
  cost[20,14,39] =  136;
  cost[20,15,39] =  324;
  cost[20,16,39] =  277;
  cost[20,17,39] =  110;
  cost[20,18,39] =  443;
  cost[20,19,39] =  31;
  cost[20,20,39] =  0;
  cost[20,21,39] =  301;
  cost[21,0,39] =  305;
  cost[21,1,39] =  38;
  cost[21,2,39] =  212;
  cost[21,3,39] =  276;
  cost[21,4,39] =  73;
  cost[21,5,39] =  31;
  cost[21,6,39] =  419;
  cost[21,7,39] =  406;
  cost[21,8,39] =  151;
  cost[21,9,39] =  128;
  cost[21,10,39] =  420;
  cost[21,11,39] =  441;
  cost[21,12,39] =  436;
  cost[21,13,39] =  96;
  cost[21,14,39] =  370;
  cost[21,15,39] =  422;
  cost[21,16,39] =  413;
  cost[21,17,39] =  308;
  cost[21,18,39] =  117;
  cost[21,19,39] =  414;
  cost[21,20,39] =  301;
  cost[21,21,39] =  0;
  cost[0,0,40] =  0;
  cost[0,1,40] =  437;
  cost[0,2,40] =  20;
  cost[0,3,40] =  260;
  cost[0,4,40] =  383;
  cost[0,5,40] =  28;
  cost[0,6,40] =  36;
  cost[0,7,40] =  253;
  cost[0,8,40] =  353;
  cost[0,9,40] =  458;
  cost[0,10,40] =  312;
  cost[0,11,40] =  347;
  cost[0,12,40] =  161;
  cost[0,13,40] =  157;
  cost[0,14,40] =  141;
  cost[0,15,40] =  90;
  cost[0,16,40] =  438;
  cost[0,17,40] =  287;
  cost[0,18,40] =  144;
  cost[0,19,40] =  65;
  cost[0,20,40] =  112;
  cost[0,21,40] =  337;
  cost[1,0,40] =  437;
  cost[1,1,40] =  0;
  cost[1,2,40] =  72;
  cost[1,3,40] =  454;
  cost[1,4,40] =  166;
  cost[1,5,40] =  103;
  cost[1,6,40] =  385;
  cost[1,7,40] =  311;
  cost[1,8,40] =  404;
  cost[1,9,40] =  34;
  cost[1,10,40] =  269;
  cost[1,11,40] =  358;
  cost[1,12,40] =  55;
  cost[1,13,40] =  45;
  cost[1,14,40] =  258;
  cost[1,15,40] =  83;
  cost[1,16,40] =  81;
  cost[1,17,40] =  28;
  cost[1,18,40] =  437;
  cost[1,19,40] =  56;
  cost[1,20,40] =  340;
  cost[1,21,40] =  300;
  cost[2,0,40] =  20;
  cost[2,1,40] =  72;
  cost[2,2,40] =  0;
  cost[2,3,40] =  14;
  cost[2,4,40] =  442;
  cost[2,5,40] =  307;
  cost[2,6,40] =  452;
  cost[2,7,40] =  246;
  cost[2,8,40] =  451;
  cost[2,9,40] =  33;
  cost[2,10,40] =  358;
  cost[2,11,40] =  305;
  cost[2,12,40] =  101;
  cost[2,13,40] =  430;
  cost[2,14,40] =  275;
  cost[2,15,40] =  268;
  cost[2,16,40] =  49;
  cost[2,17,40] =  177;
  cost[2,18,40] =  95;
  cost[2,19,40] =  454;
  cost[2,20,40] =  212;
  cost[2,21,40] =  365;
  cost[3,0,40] =  260;
  cost[3,1,40] =  454;
  cost[3,2,40] =  14;
  cost[3,3,40] =  0;
  cost[3,4,40] =  267;
  cost[3,5,40] =  411;
  cost[3,6,40] =  103;
  cost[3,7,40] =  350;
  cost[3,8,40] =  9;
  cost[3,9,40] =  131;
  cost[3,10,40] =  303;
  cost[3,11,40] =  65;
  cost[3,12,40] =  472;
  cost[3,13,40] =  120;
  cost[3,14,40] =  282;
  cost[3,15,40] =  2;
  cost[3,16,40] =  79;
  cost[3,17,40] =  105;
  cost[3,18,40] =  455;
  cost[3,19,40] =  325;
  cost[3,20,40] =  73;
  cost[3,21,40] =  5;
  cost[4,0,40] =  383;
  cost[4,1,40] =  166;
  cost[4,2,40] =  442;
  cost[4,3,40] =  267;
  cost[4,4,40] =  0;
  cost[4,5,40] =  378;
  cost[4,6,40] =  106;
  cost[4,7,40] =  145;
  cost[4,8,40] =  169;
  cost[4,9,40] =  375;
  cost[4,10,40] =  195;
  cost[4,11,40] =  347;
  cost[4,12,40] =  470;
  cost[4,13,40] =  165;
  cost[4,14,40] =  75;
  cost[4,15,40] =  352;
  cost[4,16,40] =  10;
  cost[4,17,40] =  342;
  cost[4,18,40] =  279;
  cost[4,19,40] =  114;
  cost[4,20,40] =  209;
  cost[4,21,40] =  288;
  cost[5,0,40] =  28;
  cost[5,1,40] =  103;
  cost[5,2,40] =  307;
  cost[5,3,40] =  411;
  cost[5,4,40] =  378;
  cost[5,5,40] =  0;
  cost[5,6,40] =  29;
  cost[5,7,40] =  353;
  cost[5,8,40] =  234;
  cost[5,9,40] =  150;
  cost[5,10,40] =  151;
  cost[5,11,40] =  236;
  cost[5,12,40] =  229;
  cost[5,13,40] =  257;
  cost[5,14,40] =  208;
  cost[5,15,40] =  71;
  cost[5,16,40] =  330;
  cost[5,17,40] =  213;
  cost[5,18,40] =  270;
  cost[5,19,40] =  224;
  cost[5,20,40] =  320;
  cost[5,21,40] =  416;
  cost[6,0,40] =  36;
  cost[6,1,40] =  385;
  cost[6,2,40] =  452;
  cost[6,3,40] =  103;
  cost[6,4,40] =  106;
  cost[6,5,40] =  29;
  cost[6,6,40] =  0;
  cost[6,7,40] =  211;
  cost[6,8,40] =  127;
  cost[6,9,40] =  257;
  cost[6,10,40] =  198;
  cost[6,11,40] =  293;
  cost[6,12,40] =  332;
  cost[6,13,40] =  66;
  cost[6,14,40] =  304;
  cost[6,15,40] =  191;
  cost[6,16,40] =  346;
  cost[6,17,40] =  418;
  cost[6,18,40] =  400;
  cost[6,19,40] =  150;
  cost[6,20,40] =  180;
  cost[6,21,40] =  430;
  cost[7,0,40] =  253;
  cost[7,1,40] =  311;
  cost[7,2,40] =  246;
  cost[7,3,40] =  350;
  cost[7,4,40] =  145;
  cost[7,5,40] =  353;
  cost[7,6,40] =  211;
  cost[7,7,40] =  0;
  cost[7,8,40] =  414;
  cost[7,9,40] =  96;
  cost[7,10,40] =  171;
  cost[7,11,40] =  167;
  cost[7,12,40] =  326;
  cost[7,13,40] =  429;
  cost[7,14,40] =  375;
  cost[7,15,40] =  397;
  cost[7,16,40] =  275;
  cost[7,17,40] =  104;
  cost[7,18,40] =  184;
  cost[7,19,40] =  16;
  cost[7,20,40] =  425;
  cost[7,21,40] =  116;
  cost[8,0,40] =  353;
  cost[8,1,40] =  404;
  cost[8,2,40] =  451;
  cost[8,3,40] =  9;
  cost[8,4,40] =  169;
  cost[8,5,40] =  234;
  cost[8,6,40] =  127;
  cost[8,7,40] =  414;
  cost[8,8,40] =  0;
  cost[8,9,40] =  153;
  cost[8,10,40] =  244;
  cost[8,11,40] =  184;
  cost[8,12,40] =  351;
  cost[8,13,40] =  54;
  cost[8,14,40] =  33;
  cost[8,15,40] =  418;
  cost[8,16,40] =  358;
  cost[8,17,40] =  224;
  cost[8,18,40] =  280;
  cost[8,19,40] =  293;
  cost[8,20,40] =  141;
  cost[8,21,40] =  431;
  cost[9,0,40] =  458;
  cost[9,1,40] =  34;
  cost[9,2,40] =  33;
  cost[9,3,40] =  131;
  cost[9,4,40] =  375;
  cost[9,5,40] =  150;
  cost[9,6,40] =  257;
  cost[9,7,40] =  96;
  cost[9,8,40] =  153;
  cost[9,9,40] =  0;
  cost[9,10,40] =  87;
  cost[9,11,40] =  451;
  cost[9,12,40] =  404;
  cost[9,13,40] =  184;
  cost[9,14,40] =  139;
  cost[9,15,40] =  88;
  cost[9,16,40] =  26;
  cost[9,17,40] =  84;
  cost[9,18,40] =  463;
  cost[9,19,40] =  423;
  cost[9,20,40] =  359;
  cost[9,21,40] =  84;
  cost[10,0,40] =  312;
  cost[10,1,40] =  269;
  cost[10,2,40] =  358;
  cost[10,3,40] =  303;
  cost[10,4,40] =  195;
  cost[10,5,40] =  151;
  cost[10,6,40] =  198;
  cost[10,7,40] =  171;
  cost[10,8,40] =  244;
  cost[10,9,40] =  87;
  cost[10,10,40] =  0;
  cost[10,11,40] =  376;
  cost[10,12,40] =  26;
  cost[10,13,40] =  240;
  cost[10,14,40] =  302;
  cost[10,15,40] =  179;
  cost[10,16,40] =  1;
  cost[10,17,40] =  3;
  cost[10,18,40] =  46;
  cost[10,19,40] =  55;
  cost[10,20,40] =  36;
  cost[10,21,40] =  465;
  cost[11,0,40] =  347;
  cost[11,1,40] =  358;
  cost[11,2,40] =  305;
  cost[11,3,40] =  65;
  cost[11,4,40] =  347;
  cost[11,5,40] =  236;
  cost[11,6,40] =  293;
  cost[11,7,40] =  167;
  cost[11,8,40] =  184;
  cost[11,9,40] =  451;
  cost[11,10,40] =  376;
  cost[11,11,40] =  0;
  cost[11,12,40] =  261;
  cost[11,13,40] =  262;
  cost[11,14,40] =  223;
  cost[11,15,40] =  402;
  cost[11,16,40] =  209;
  cost[11,17,40] =  213;
  cost[11,18,40] =  6;
  cost[11,19,40] =  177;
  cost[11,20,40] =  134;
  cost[11,21,40] =  190;
  cost[12,0,40] =  161;
  cost[12,1,40] =  55;
  cost[12,2,40] =  101;
  cost[12,3,40] =  472;
  cost[12,4,40] =  470;
  cost[12,5,40] =  229;
  cost[12,6,40] =  332;
  cost[12,7,40] =  326;
  cost[12,8,40] =  351;
  cost[12,9,40] =  404;
  cost[12,10,40] =  26;
  cost[12,11,40] =  261;
  cost[12,12,40] =  0;
  cost[12,13,40] =  222;
  cost[12,14,40] =  217;
  cost[12,15,40] =  401;
  cost[12,16,40] =  202;
  cost[12,17,40] =  156;
  cost[12,18,40] =  277;
  cost[12,19,40] =  287;
  cost[12,20,40] =  280;
  cost[12,21,40] =  169;
  cost[13,0,40] =  157;
  cost[13,1,40] =  45;
  cost[13,2,40] =  430;
  cost[13,3,40] =  120;
  cost[13,4,40] =  165;
  cost[13,5,40] =  257;
  cost[13,6,40] =  66;
  cost[13,7,40] =  429;
  cost[13,8,40] =  54;
  cost[13,9,40] =  184;
  cost[13,10,40] =  240;
  cost[13,11,40] =  262;
  cost[13,12,40] =  222;
  cost[13,13,40] =  0;
  cost[13,14,40] =  37;
  cost[13,15,40] =  471;
  cost[13,16,40] =  8;
  cost[13,17,40] =  38;
  cost[13,18,40] =  475;
  cost[13,19,40] =  55;
  cost[13,20,40] =  94;
  cost[13,21,40] =  27;
  cost[14,0,40] =  141;
  cost[14,1,40] =  258;
  cost[14,2,40] =  275;
  cost[14,3,40] =  282;
  cost[14,4,40] =  75;
  cost[14,5,40] =  208;
  cost[14,6,40] =  304;
  cost[14,7,40] =  375;
  cost[14,8,40] =  33;
  cost[14,9,40] =  139;
  cost[14,10,40] =  302;
  cost[14,11,40] =  223;
  cost[14,12,40] =  217;
  cost[14,13,40] =  37;
  cost[14,14,40] =  0;
  cost[14,15,40] =  24;
  cost[14,16,40] =  288;
  cost[14,17,40] =  299;
  cost[14,18,40] =  247;
  cost[14,19,40] =  207;
  cost[14,20,40] =  25;
  cost[14,21,40] =  461;
  cost[15,0,40] =  90;
  cost[15,1,40] =  83;
  cost[15,2,40] =  268;
  cost[15,3,40] =  2;
  cost[15,4,40] =  352;
  cost[15,5,40] =  71;
  cost[15,6,40] =  191;
  cost[15,7,40] =  397;
  cost[15,8,40] =  418;
  cost[15,9,40] =  88;
  cost[15,10,40] =  179;
  cost[15,11,40] =  402;
  cost[15,12,40] =  401;
  cost[15,13,40] =  471;
  cost[15,14,40] =  24;
  cost[15,15,40] =  0;
  cost[15,16,40] =  202;
  cost[15,17,40] =  112;
  cost[15,18,40] =  405;
  cost[15,19,40] =  35;
  cost[15,20,40] =  335;
  cost[15,21,40] =  138;
  cost[16,0,40] =  438;
  cost[16,1,40] =  81;
  cost[16,2,40] =  49;
  cost[16,3,40] =  79;
  cost[16,4,40] =  10;
  cost[16,5,40] =  330;
  cost[16,6,40] =  346;
  cost[16,7,40] =  275;
  cost[16,8,40] =  358;
  cost[16,9,40] =  26;
  cost[16,10,40] =  1;
  cost[16,11,40] =  209;
  cost[16,12,40] =  202;
  cost[16,13,40] =  8;
  cost[16,14,40] =  288;
  cost[16,15,40] =  202;
  cost[16,16,40] =  0;
  cost[16,17,40] =  53;
  cost[16,18,40] =  295;
  cost[16,19,40] =  229;
  cost[16,20,40] =  341;
  cost[16,21,40] =  92;
  cost[17,0,40] =  287;
  cost[17,1,40] =  28;
  cost[17,2,40] =  177;
  cost[17,3,40] =  105;
  cost[17,4,40] =  342;
  cost[17,5,40] =  213;
  cost[17,6,40] =  418;
  cost[17,7,40] =  104;
  cost[17,8,40] =  224;
  cost[17,9,40] =  84;
  cost[17,10,40] =  3;
  cost[17,11,40] =  213;
  cost[17,12,40] =  156;
  cost[17,13,40] =  38;
  cost[17,14,40] =  299;
  cost[17,15,40] =  112;
  cost[17,16,40] =  53;
  cost[17,17,40] =  0;
  cost[17,18,40] =  170;
  cost[17,19,40] =  129;
  cost[17,20,40] =  386;
  cost[17,21,40] =  179;
  cost[18,0,40] =  144;
  cost[18,1,40] =  437;
  cost[18,2,40] =  95;
  cost[18,3,40] =  455;
  cost[18,4,40] =  279;
  cost[18,5,40] =  270;
  cost[18,6,40] =  400;
  cost[18,7,40] =  184;
  cost[18,8,40] =  280;
  cost[18,9,40] =  463;
  cost[18,10,40] =  46;
  cost[18,11,40] =  6;
  cost[18,12,40] =  277;
  cost[18,13,40] =  475;
  cost[18,14,40] =  247;
  cost[18,15,40] =  405;
  cost[18,16,40] =  295;
  cost[18,17,40] =  170;
  cost[18,18,40] =  0;
  cost[18,19,40] =  377;
  cost[18,20,40] =  234;
  cost[18,21,40] =  262;
  cost[19,0,40] =  65;
  cost[19,1,40] =  56;
  cost[19,2,40] =  454;
  cost[19,3,40] =  325;
  cost[19,4,40] =  114;
  cost[19,5,40] =  224;
  cost[19,6,40] =  150;
  cost[19,7,40] =  16;
  cost[19,8,40] =  293;
  cost[19,9,40] =  423;
  cost[19,10,40] =  55;
  cost[19,11,40] =  177;
  cost[19,12,40] =  287;
  cost[19,13,40] =  55;
  cost[19,14,40] =  207;
  cost[19,15,40] =  35;
  cost[19,16,40] =  229;
  cost[19,17,40] =  129;
  cost[19,18,40] =  377;
  cost[19,19,40] =  0;
  cost[19,20,40] =  271;
  cost[19,21,40] =  286;
  cost[20,0,40] =  112;
  cost[20,1,40] =  340;
  cost[20,2,40] =  212;
  cost[20,3,40] =  73;
  cost[20,4,40] =  209;
  cost[20,5,40] =  320;
  cost[20,6,40] =  180;
  cost[20,7,40] =  425;
  cost[20,8,40] =  141;
  cost[20,9,40] =  359;
  cost[20,10,40] =  36;
  cost[20,11,40] =  134;
  cost[20,12,40] =  280;
  cost[20,13,40] =  94;
  cost[20,14,40] =  25;
  cost[20,15,40] =  335;
  cost[20,16,40] =  341;
  cost[20,17,40] =  386;
  cost[20,18,40] =  234;
  cost[20,19,40] =  271;
  cost[20,20,40] =  0;
  cost[20,21,40] =  87;
  cost[21,0,40] =  337;
  cost[21,1,40] =  300;
  cost[21,2,40] =  365;
  cost[21,3,40] =  5;
  cost[21,4,40] =  288;
  cost[21,5,40] =  416;
  cost[21,6,40] =  430;
  cost[21,7,40] =  116;
  cost[21,8,40] =  431;
  cost[21,9,40] =  84;
  cost[21,10,40] =  465;
  cost[21,11,40] =  190;
  cost[21,12,40] =  169;
  cost[21,13,40] =  27;
  cost[21,14,40] =  461;
  cost[21,15,40] =  138;
  cost[21,16,40] =  92;
  cost[21,17,40] =  179;
  cost[21,18,40] =  262;
  cost[21,19,40] =  286;
  cost[21,20,40] =  87;
  cost[21,21,40] =  0;
  cost[0,0,41] =  0;
  cost[0,1,41] =  112;
  cost[0,2,41] =  28;
  cost[0,3,41] =  148;
  cost[0,4,41] =  315;
  cost[0,5,41] =  140;
  cost[0,6,41] =  70;
  cost[0,7,41] =  350;
  cost[0,8,41] =  475;
  cost[0,9,41] =  209;
  cost[0,10,41] =  303;
  cost[0,11,41] =  45;
  cost[0,12,41] =  20;
  cost[0,13,41] =  48;
  cost[0,14,41] =  386;
  cost[0,15,41] =  113;
  cost[0,16,41] =  447;
  cost[0,17,41] =  73;
  cost[0,18,41] =  242;
  cost[0,19,41] =  349;
  cost[0,20,41] =  252;
  cost[0,21,41] =  411;
  cost[1,0,41] =  112;
  cost[1,1,41] =  0;
  cost[1,2,41] =  3;
  cost[1,3,41] =  189;
  cost[1,4,41] =  164;
  cost[1,5,41] =  274;
  cost[1,6,41] =  476;
  cost[1,7,41] =  375;
  cost[1,8,41] =  362;
  cost[1,9,41] =  42;
  cost[1,10,41] =  309;
  cost[1,11,41] =  474;
  cost[1,12,41] =  70;
  cost[1,13,41] =  458;
  cost[1,14,41] =  306;
  cost[1,15,41] =  211;
  cost[1,16,41] =  44;
  cost[1,17,41] =  172;
  cost[1,18,41] =  203;
  cost[1,19,41] =  253;
  cost[1,20,41] =  475;
  cost[1,21,41] =  249;
  cost[2,0,41] =  28;
  cost[2,1,41] =  3;
  cost[2,2,41] =  0;
  cost[2,3,41] =  40;
  cost[2,4,41] =  152;
  cost[2,5,41] =  387;
  cost[2,6,41] =  3;
  cost[2,7,41] =  225;
  cost[2,8,41] =  146;
  cost[2,9,41] =  353;
  cost[2,10,41] =  478;
  cost[2,11,41] =  73;
  cost[2,12,41] =  113;
  cost[2,13,41] =  481;
  cost[2,14,41] =  263;
  cost[2,15,41] =  278;
  cost[2,16,41] =  272;
  cost[2,17,41] =  255;
  cost[2,18,41] =  169;
  cost[2,19,41] =  150;
  cost[2,20,41] =  298;
  cost[2,21,41] =  478;
  cost[3,0,41] =  148;
  cost[3,1,41] =  189;
  cost[3,2,41] =  40;
  cost[3,3,41] =  0;
  cost[3,4,41] =  369;
  cost[3,5,41] =  453;
  cost[3,6,41] =  447;
  cost[3,7,41] =  97;
  cost[3,8,41] =  13;
  cost[3,9,41] =  136;
  cost[3,10,41] =  300;
  cost[3,11,41] =  267;
  cost[3,12,41] =  128;
  cost[3,13,41] =  65;
  cost[3,14,41] =  57;
  cost[3,15,41] =  168;
  cost[3,16,41] =  217;
  cost[3,17,41] =  445;
  cost[3,18,41] =  172;
  cost[3,19,41] =  443;
  cost[3,20,41] =  107;
  cost[3,21,41] =  41;
  cost[4,0,41] =  315;
  cost[4,1,41] =  164;
  cost[4,2,41] =  152;
  cost[4,3,41] =  369;
  cost[4,4,41] =  0;
  cost[4,5,41] =  181;
  cost[4,6,41] =  154;
  cost[4,7,41] =  435;
  cost[4,8,41] =  444;
  cost[4,9,41] =  432;
  cost[4,10,41] =  223;
  cost[4,11,41] =  216;
  cost[4,12,41] =  118;
  cost[4,13,41] =  373;
  cost[4,14,41] =  31;
  cost[4,15,41] =  113;
  cost[4,16,41] =  30;
  cost[4,17,41] =  401;
  cost[4,18,41] =  82;
  cost[4,19,41] =  478;
  cost[4,20,41] =  14;
  cost[4,21,41] =  96;
  cost[5,0,41] =  140;
  cost[5,1,41] =  274;
  cost[5,2,41] =  387;
  cost[5,3,41] =  453;
  cost[5,4,41] =  181;
  cost[5,5,41] =  0;
  cost[5,6,41] =  315;
  cost[5,7,41] =  363;
  cost[5,8,41] =  258;
  cost[5,9,41] =  380;
  cost[5,10,41] =  421;
  cost[5,11,41] =  426;
  cost[5,12,41] =  114;
  cost[5,13,41] =  382;
  cost[5,14,41] =  115;
  cost[5,15,41] =  74;
  cost[5,16,41] =  5;
  cost[5,17,41] =  156;
  cost[5,18,41] =  27;
  cost[5,19,41] =  187;
  cost[5,20,41] =  311;
  cost[5,21,41] =  462;
  cost[6,0,41] =  70;
  cost[6,1,41] =  476;
  cost[6,2,41] =  3;
  cost[6,3,41] =  447;
  cost[6,4,41] =  154;
  cost[6,5,41] =  315;
  cost[6,6,41] =  0;
  cost[6,7,41] =  260;
  cost[6,8,41] =  202;
  cost[6,9,41] =  364;
  cost[6,10,41] =  379;
  cost[6,11,41] =  91;
  cost[6,12,41] =  396;
  cost[6,13,41] =  8;
  cost[6,14,41] =  122;
  cost[6,15,41] =  314;
  cost[6,16,41] =  90;
  cost[6,17,41] =  116;
  cost[6,18,41] =  328;
  cost[6,19,41] =  187;
  cost[6,20,41] =  246;
  cost[6,21,41] =  159;
  cost[7,0,41] =  350;
  cost[7,1,41] =  375;
  cost[7,2,41] =  225;
  cost[7,3,41] =  97;
  cost[7,4,41] =  435;
  cost[7,5,41] =  363;
  cost[7,6,41] =  260;
  cost[7,7,41] =  0;
  cost[7,8,41] =  21;
  cost[7,9,41] =  56;
  cost[7,10,41] =  3;
  cost[7,11,41] =  448;
  cost[7,12,41] =  171;
  cost[7,13,41] =  385;
  cost[7,14,41] =  79;
  cost[7,15,41] =  245;
  cost[7,16,41] =  391;
  cost[7,17,41] =  236;
  cost[7,18,41] =  273;
  cost[7,19,41] =  94;
  cost[7,20,41] =  64;
  cost[7,21,41] =  252;
  cost[8,0,41] =  475;
  cost[8,1,41] =  362;
  cost[8,2,41] =  146;
  cost[8,3,41] =  13;
  cost[8,4,41] =  444;
  cost[8,5,41] =  258;
  cost[8,6,41] =  202;
  cost[8,7,41] =  21;
  cost[8,8,41] =  0;
  cost[8,9,41] =  324;
  cost[8,10,41] =  454;
  cost[8,11,41] =  123;
  cost[8,12,41] =  220;
  cost[8,13,41] =  61;
  cost[8,14,41] =  35;
  cost[8,15,41] =  228;
  cost[8,16,41] =  184;
  cost[8,17,41] =  349;
  cost[8,18,41] =  319;
  cost[8,19,41] =  300;
  cost[8,20,41] =  194;
  cost[8,21,41] =  22;
  cost[9,0,41] =  209;
  cost[9,1,41] =  42;
  cost[9,2,41] =  353;
  cost[9,3,41] =  136;
  cost[9,4,41] =  432;
  cost[9,5,41] =  380;
  cost[9,6,41] =  364;
  cost[9,7,41] =  56;
  cost[9,8,41] =  324;
  cost[9,9,41] =  0;
  cost[9,10,41] =  354;
  cost[9,11,41] =  88;
  cost[9,12,41] =  84;
  cost[9,13,41] =  411;
  cost[9,14,41] =  92;
  cost[9,15,41] =  49;
  cost[9,16,41] =  98;
  cost[9,17,41] =  477;
  cost[9,18,41] =  128;
  cost[9,19,41] =  344;
  cost[9,20,41] =  385;
  cost[9,21,41] =  364;
  cost[10,0,41] =  303;
  cost[10,1,41] =  309;
  cost[10,2,41] =  478;
  cost[10,3,41] =  300;
  cost[10,4,41] =  223;
  cost[10,5,41] =  421;
  cost[10,6,41] =  379;
  cost[10,7,41] =  3;
  cost[10,8,41] =  454;
  cost[10,9,41] =  354;
  cost[10,10,41] =  0;
  cost[10,11,41] =  479;
  cost[10,12,41] =  428;
  cost[10,13,41] =  386;
  cost[10,14,41] =  237;
  cost[10,15,41] =  269;
  cost[10,16,41] =  356;
  cost[10,17,41] =  360;
  cost[10,18,41] =  5;
  cost[10,19,41] =  417;
  cost[10,20,41] =  396;
  cost[10,21,41] =  234;
  cost[11,0,41] =  45;
  cost[11,1,41] =  474;
  cost[11,2,41] =  73;
  cost[11,3,41] =  267;
  cost[11,4,41] =  216;
  cost[11,5,41] =  426;
  cost[11,6,41] =  91;
  cost[11,7,41] =  448;
  cost[11,8,41] =  123;
  cost[11,9,41] =  88;
  cost[11,10,41] =  479;
  cost[11,11,41] =  0;
  cost[11,12,41] =  262;
  cost[11,13,41] =  69;
  cost[11,14,41] =  419;
  cost[11,15,41] =  456;
  cost[11,16,41] =  91;
  cost[11,17,41] =  482;
  cost[11,18,41] =  327;
  cost[11,19,41] =  180;
  cost[11,20,41] =  83;
  cost[11,21,41] =  254;
  cost[12,0,41] =  20;
  cost[12,1,41] =  70;
  cost[12,2,41] =  113;
  cost[12,3,41] =  128;
  cost[12,4,41] =  118;
  cost[12,5,41] =  114;
  cost[12,6,41] =  396;
  cost[12,7,41] =  171;
  cost[12,8,41] =  220;
  cost[12,9,41] =  84;
  cost[12,10,41] =  428;
  cost[12,11,41] =  262;
  cost[12,12,41] =  0;
  cost[12,13,41] =  132;
  cost[12,14,41] =  353;
  cost[12,15,41] =  266;
  cost[12,16,41] =  261;
  cost[12,17,41] =  214;
  cost[12,18,41] =  167;
  cost[12,19,41] =  141;
  cost[12,20,41] =  348;
  cost[12,21,41] =  163;
  cost[13,0,41] =  48;
  cost[13,1,41] =  458;
  cost[13,2,41] =  481;
  cost[13,3,41] =  65;
  cost[13,4,41] =  373;
  cost[13,5,41] =  382;
  cost[13,6,41] =  8;
  cost[13,7,41] =  385;
  cost[13,8,41] =  61;
  cost[13,9,41] =  411;
  cost[13,10,41] =  386;
  cost[13,11,41] =  69;
  cost[13,12,41] =  132;
  cost[13,13,41] =  0;
  cost[13,14,41] =  250;
  cost[13,15,41] =  400;
  cost[13,16,41] =  355;
  cost[13,17,41] =  122;
  cost[13,18,41] =  277;
  cost[13,19,41] =  361;
  cost[13,20,41] =  56;
  cost[13,21,41] =  190;
  cost[14,0,41] =  386;
  cost[14,1,41] =  306;
  cost[14,2,41] =  263;
  cost[14,3,41] =  57;
  cost[14,4,41] =  31;
  cost[14,5,41] =  115;
  cost[14,6,41] =  122;
  cost[14,7,41] =  79;
  cost[14,8,41] =  35;
  cost[14,9,41] =  92;
  cost[14,10,41] =  237;
  cost[14,11,41] =  419;
  cost[14,12,41] =  353;
  cost[14,13,41] =  250;
  cost[14,14,41] =  0;
  cost[14,15,41] =  174;
  cost[14,16,41] =  452;
  cost[14,17,41] =  181;
  cost[14,18,41] =  109;
  cost[14,19,41] =  425;
  cost[14,20,41] =  273;
  cost[14,21,41] =  108;
  cost[15,0,41] =  113;
  cost[15,1,41] =  211;
  cost[15,2,41] =  278;
  cost[15,3,41] =  168;
  cost[15,4,41] =  113;
  cost[15,5,41] =  74;
  cost[15,6,41] =  314;
  cost[15,7,41] =  245;
  cost[15,8,41] =  228;
  cost[15,9,41] =  49;
  cost[15,10,41] =  269;
  cost[15,11,41] =  456;
  cost[15,12,41] =  266;
  cost[15,13,41] =  400;
  cost[15,14,41] =  174;
  cost[15,15,41] =  0;
  cost[15,16,41] =  453;
  cost[15,17,41] =  192;
  cost[15,18,41] =  39;
  cost[15,19,41] =  242;
  cost[15,20,41] =  325;
  cost[15,21,41] =  392;
  cost[16,0,41] =  447;
  cost[16,1,41] =  44;
  cost[16,2,41] =  272;
  cost[16,3,41] =  217;
  cost[16,4,41] =  30;
  cost[16,5,41] =  5;
  cost[16,6,41] =  90;
  cost[16,7,41] =  391;
  cost[16,8,41] =  184;
  cost[16,9,41] =  98;
  cost[16,10,41] =  356;
  cost[16,11,41] =  91;
  cost[16,12,41] =  261;
  cost[16,13,41] =  355;
  cost[16,14,41] =  452;
  cost[16,15,41] =  453;
  cost[16,16,41] =  0;
  cost[16,17,41] =  102;
  cost[16,18,41] =  122;
  cost[16,19,41] =  193;
  cost[16,20,41] =  244;
  cost[16,21,41] =  471;
  cost[17,0,41] =  73;
  cost[17,1,41] =  172;
  cost[17,2,41] =  255;
  cost[17,3,41] =  445;
  cost[17,4,41] =  401;
  cost[17,5,41] =  156;
  cost[17,6,41] =  116;
  cost[17,7,41] =  236;
  cost[17,8,41] =  349;
  cost[17,9,41] =  477;
  cost[17,10,41] =  360;
  cost[17,11,41] =  482;
  cost[17,12,41] =  214;
  cost[17,13,41] =  122;
  cost[17,14,41] =  181;
  cost[17,15,41] =  192;
  cost[17,16,41] =  102;
  cost[17,17,41] =  0;
  cost[17,18,41] =  330;
  cost[17,19,41] =  237;
  cost[17,20,41] =  273;
  cost[17,21,41] =  202;
  cost[18,0,41] =  242;
  cost[18,1,41] =  203;
  cost[18,2,41] =  169;
  cost[18,3,41] =  172;
  cost[18,4,41] =  82;
  cost[18,5,41] =  27;
  cost[18,6,41] =  328;
  cost[18,7,41] =  273;
  cost[18,8,41] =  319;
  cost[18,9,41] =  128;
  cost[18,10,41] =  5;
  cost[18,11,41] =  327;
  cost[18,12,41] =  167;
  cost[18,13,41] =  277;
  cost[18,14,41] =  109;
  cost[18,15,41] =  39;
  cost[18,16,41] =  122;
  cost[18,17,41] =  330;
  cost[18,18,41] =  0;
  cost[18,19,41] =  67;
  cost[18,20,41] =  80;
  cost[18,21,41] =  416;
  cost[19,0,41] =  349;
  cost[19,1,41] =  253;
  cost[19,2,41] =  150;
  cost[19,3,41] =  443;
  cost[19,4,41] =  478;
  cost[19,5,41] =  187;
  cost[19,6,41] =  187;
  cost[19,7,41] =  94;
  cost[19,8,41] =  300;
  cost[19,9,41] =  344;
  cost[19,10,41] =  417;
  cost[19,11,41] =  180;
  cost[19,12,41] =  141;
  cost[19,13,41] =  361;
  cost[19,14,41] =  425;
  cost[19,15,41] =  242;
  cost[19,16,41] =  193;
  cost[19,17,41] =  237;
  cost[19,18,41] =  67;
  cost[19,19,41] =  0;
  cost[19,20,41] =  191;
  cost[19,21,41] =  107;
  cost[20,0,41] =  252;
  cost[20,1,41] =  475;
  cost[20,2,41] =  298;
  cost[20,3,41] =  107;
  cost[20,4,41] =  14;
  cost[20,5,41] =  311;
  cost[20,6,41] =  246;
  cost[20,7,41] =  64;
  cost[20,8,41] =  194;
  cost[20,9,41] =  385;
  cost[20,10,41] =  396;
  cost[20,11,41] =  83;
  cost[20,12,41] =  348;
  cost[20,13,41] =  56;
  cost[20,14,41] =  273;
  cost[20,15,41] =  325;
  cost[20,16,41] =  244;
  cost[20,17,41] =  273;
  cost[20,18,41] =  80;
  cost[20,19,41] =  191;
  cost[20,20,41] =  0;
  cost[20,21,41] =  372;
  cost[21,0,41] =  411;
  cost[21,1,41] =  249;
  cost[21,2,41] =  478;
  cost[21,3,41] =  41;
  cost[21,4,41] =  96;
  cost[21,5,41] =  462;
  cost[21,6,41] =  159;
  cost[21,7,41] =  252;
  cost[21,8,41] =  22;
  cost[21,9,41] =  364;
  cost[21,10,41] =  234;
  cost[21,11,41] =  254;
  cost[21,12,41] =  163;
  cost[21,13,41] =  190;
  cost[21,14,41] =  108;
  cost[21,15,41] =  392;
  cost[21,16,41] =  471;
  cost[21,17,41] =  202;
  cost[21,18,41] =  416;
  cost[21,19,41] =  107;
  cost[21,20,41] =  372;
  cost[21,21,41] =  0;
  cost[0,0,42] =  0;
  cost[0,1,42] =  161;
  cost[0,2,42] =  325;
  cost[0,3,42] =  435;
  cost[0,4,42] =  131;
  cost[0,5,42] =  33;
  cost[0,6,42] =  474;
  cost[0,7,42] =  374;
  cost[0,8,42] =  359;
  cost[0,9,42] =  383;
  cost[0,10,42] =  400;
  cost[0,11,42] =  461;
  cost[0,12,42] =  22;
  cost[0,13,42] =  110;
  cost[0,14,42] =  222;
  cost[0,15,42] =  9;
  cost[0,16,42] =  467;
  cost[0,17,42] =  68;
  cost[0,18,42] =  246;
  cost[0,19,42] =  256;
  cost[0,20,42] =  271;
  cost[0,21,42] =  122;
  cost[1,0,42] =  161;
  cost[1,1,42] =  0;
  cost[1,2,42] =  351;
  cost[1,3,42] =  54;
  cost[1,4,42] =  97;
  cost[1,5,42] =  59;
  cost[1,6,42] =  161;
  cost[1,7,42] =  323;
  cost[1,8,42] =  431;
  cost[1,9,42] =  378;
  cost[1,10,42] =  6;
  cost[1,11,42] =  109;
  cost[1,12,42] =  220;
  cost[1,13,42] =  442;
  cost[1,14,42] =  241;
  cost[1,15,42] =  254;
  cost[1,16,42] =  433;
  cost[1,17,42] =  131;
  cost[1,18,42] =  129;
  cost[1,19,42] =  332;
  cost[1,20,42] =  48;
  cost[1,21,42] =  107;
  cost[2,0,42] =  325;
  cost[2,1,42] =  351;
  cost[2,2,42] =  0;
  cost[2,3,42] =  158;
  cost[2,4,42] =  329;
  cost[2,5,42] =  364;
  cost[2,6,42] =  141;
  cost[2,7,42] =  398;
  cost[2,8,42] =  127;
  cost[2,9,42] =  398;
  cost[2,10,42] =  185;
  cost[2,11,42] =  249;
  cost[2,12,42] =  238;
  cost[2,13,42] =  53;
  cost[2,14,42] =  304;
  cost[2,15,42] =  336;
  cost[2,16,42] =  112;
  cost[2,17,42] =  466;
  cost[2,18,42] =  176;
  cost[2,19,42] =  60;
  cost[2,20,42] =  361;
  cost[2,21,42] =  183;
  cost[3,0,42] =  435;
  cost[3,1,42] =  54;
  cost[3,2,42] =  158;
  cost[3,3,42] =  0;
  cost[3,4,42] =  97;
  cost[3,5,42] =  141;
  cost[3,6,42] =  410;
  cost[3,7,42] =  351;
  cost[3,8,42] =  90;
  cost[3,9,42] =  58;
  cost[3,10,42] =  480;
  cost[3,11,42] =  423;
  cost[3,12,42] =  106;
  cost[3,13,42] =  104;
  cost[3,14,42] =  294;
  cost[3,15,42] =  264;
  cost[3,16,42] =  433;
  cost[3,17,42] =  175;
  cost[3,18,42] =  406;
  cost[3,19,42] =  347;
  cost[3,20,42] =  302;
  cost[3,21,42] =  320;
  cost[4,0,42] =  131;
  cost[4,1,42] =  97;
  cost[4,2,42] =  329;
  cost[4,3,42] =  97;
  cost[4,4,42] =  0;
  cost[4,5,42] =  67;
  cost[4,6,42] =  75;
  cost[4,7,42] =  102;
  cost[4,8,42] =  372;
  cost[4,9,42] =  412;
  cost[4,10,42] =  214;
  cost[4,11,42] =  354;
  cost[4,12,42] =  104;
  cost[4,13,42] =  275;
  cost[4,14,42] =  231;
  cost[4,15,42] =  287;
  cost[4,16,42] =  444;
  cost[4,17,42] =  328;
  cost[4,18,42] =  429;
  cost[4,19,42] =  371;
  cost[4,20,42] =  196;
  cost[4,21,42] =  35;
  cost[5,0,42] =  33;
  cost[5,1,42] =  59;
  cost[5,2,42] =  364;
  cost[5,3,42] =  141;
  cost[5,4,42] =  67;
  cost[5,5,42] =  0;
  cost[5,6,42] =  193;
  cost[5,7,42] =  459;
  cost[5,8,42] =  51;
  cost[5,9,42] =  297;
  cost[5,10,42] =  270;
  cost[5,11,42] =  316;
  cost[5,12,42] =  246;
  cost[5,13,42] =  445;
  cost[5,14,42] =  239;
  cost[5,15,42] =  110;
  cost[5,16,42] =  263;
  cost[5,17,42] =  76;
  cost[5,18,42] =  160;
  cost[5,19,42] =  331;
  cost[5,20,42] =  151;
  cost[5,21,42] =  262;
  cost[6,0,42] =  474;
  cost[6,1,42] =  161;
  cost[6,2,42] =  141;
  cost[6,3,42] =  410;
  cost[6,4,42] =  75;
  cost[6,5,42] =  193;
  cost[6,6,42] =  0;
  cost[6,7,42] =  80;
  cost[6,8,42] =  477;
  cost[6,9,42] =  89;
  cost[6,10,42] =  184;
  cost[6,11,42] =  268;
  cost[6,12,42] =  321;
  cost[6,13,42] =  472;
  cost[6,14,42] =  229;
  cost[6,15,42] =  166;
  cost[6,16,42] =  417;
  cost[6,17,42] =  116;
  cost[6,18,42] =  362;
  cost[6,19,42] =  453;
  cost[6,20,42] =  62;
  cost[6,21,42] =  71;
  cost[7,0,42] =  374;
  cost[7,1,42] =  323;
  cost[7,2,42] =  398;
  cost[7,3,42] =  351;
  cost[7,4,42] =  102;
  cost[7,5,42] =  459;
  cost[7,6,42] =  80;
  cost[7,7,42] =  0;
  cost[7,8,42] =  114;
  cost[7,9,42] =  368;
  cost[7,10,42] =  215;
  cost[7,11,42] =  430;
  cost[7,12,42] =  131;
  cost[7,13,42] =  176;
  cost[7,14,42] =  186;
  cost[7,15,42] =  242;
  cost[7,16,42] =  439;
  cost[7,17,42] =  262;
  cost[7,18,42] =  402;
  cost[7,19,42] =  286;
  cost[7,20,42] =  414;
  cost[7,21,42] =  181;
  cost[8,0,42] =  359;
  cost[8,1,42] =  431;
  cost[8,2,42] =  127;
  cost[8,3,42] =  90;
  cost[8,4,42] =  372;
  cost[8,5,42] =  51;
  cost[8,6,42] =  477;
  cost[8,7,42] =  114;
  cost[8,8,42] =  0;
  cost[8,9,42] =  10;
  cost[8,10,42] =  175;
  cost[8,11,42] =  111;
  cost[8,12,42] =  195;
  cost[8,13,42] =  443;
  cost[8,14,42] =  432;
  cost[8,15,42] =  183;
  cost[8,16,42] =  189;
  cost[8,17,42] =  114;
  cost[8,18,42] =  116;
  cost[8,19,42] =  306;
  cost[8,20,42] =  477;
  cost[8,21,42] =  86;
  cost[9,0,42] =  383;
  cost[9,1,42] =  378;
  cost[9,2,42] =  398;
  cost[9,3,42] =  58;
  cost[9,4,42] =  412;
  cost[9,5,42] =  297;
  cost[9,6,42] =  89;
  cost[9,7,42] =  368;
  cost[9,8,42] =  10;
  cost[9,9,42] =  0;
  cost[9,10,42] =  64;
  cost[9,11,42] =  31;
  cost[9,12,42] =  482;
  cost[9,13,42] =  433;
  cost[9,14,42] =  246;
  cost[9,15,42] =  429;
  cost[9,16,42] =  81;
  cost[9,17,42] =  422;
  cost[9,18,42] =  131;
  cost[9,19,42] =  323;
  cost[9,20,42] =  378;
  cost[9,21,42] =  393;
  cost[10,0,42] =  400;
  cost[10,1,42] =  6;
  cost[10,2,42] =  185;
  cost[10,3,42] =  480;
  cost[10,4,42] =  214;
  cost[10,5,42] =  270;
  cost[10,6,42] =  184;
  cost[10,7,42] =  215;
  cost[10,8,42] =  175;
  cost[10,9,42] =  64;
  cost[10,10,42] =  0;
  cost[10,11,42] =  180;
  cost[10,12,42] =  323;
  cost[10,13,42] =  422;
  cost[10,14,42] =  202;
  cost[10,15,42] =  333;
  cost[10,16,42] =  114;
  cost[10,17,42] =  314;
  cost[10,18,42] =  45;
  cost[10,19,42] =  74;
  cost[10,20,42] =  262;
  cost[10,21,42] =  228;
  cost[11,0,42] =  461;
  cost[11,1,42] =  109;
  cost[11,2,42] =  249;
  cost[11,3,42] =  423;
  cost[11,4,42] =  354;
  cost[11,5,42] =  316;
  cost[11,6,42] =  268;
  cost[11,7,42] =  430;
  cost[11,8,42] =  111;
  cost[11,9,42] =  31;
  cost[11,10,42] =  180;
  cost[11,11,42] =  0;
  cost[11,12,42] =  377;
  cost[11,13,42] =  345;
  cost[11,14,42] =  85;
  cost[11,15,42] =  371;
  cost[11,16,42] =  431;
  cost[11,17,42] =  453;
  cost[11,18,42] =  435;
  cost[11,19,42] =  462;
  cost[11,20,42] =  451;
  cost[11,21,42] =  385;
  cost[12,0,42] =  22;
  cost[12,1,42] =  220;
  cost[12,2,42] =  238;
  cost[12,3,42] =  106;
  cost[12,4,42] =  104;
  cost[12,5,42] =  246;
  cost[12,6,42] =  321;
  cost[12,7,42] =  131;
  cost[12,8,42] =  195;
  cost[12,9,42] =  482;
  cost[12,10,42] =  323;
  cost[12,11,42] =  377;
  cost[12,12,42] =  0;
  cost[12,13,42] =  397;
  cost[12,14,42] =  466;
  cost[12,15,42] =  163;
  cost[12,16,42] =  44;
  cost[12,17,42] =  305;
  cost[12,18,42] =  57;
  cost[12,19,42] =  437;
  cost[12,20,42] =  63;
  cost[12,21,42] =  238;
  cost[13,0,42] =  110;
  cost[13,1,42] =  442;
  cost[13,2,42] =  53;
  cost[13,3,42] =  104;
  cost[13,4,42] =  275;
  cost[13,5,42] =  445;
  cost[13,6,42] =  472;
  cost[13,7,42] =  176;
  cost[13,8,42] =  443;
  cost[13,9,42] =  433;
  cost[13,10,42] =  422;
  cost[13,11,42] =  345;
  cost[13,12,42] =  397;
  cost[13,13,42] =  0;
  cost[13,14,42] =  2;
  cost[13,15,42] =  440;
  cost[13,16,42] =  127;
  cost[13,17,42] =  116;
  cost[13,18,42] =  270;
  cost[13,19,42] =  172;
  cost[13,20,42] =  190;
  cost[13,21,42] =  49;
  cost[14,0,42] =  222;
  cost[14,1,42] =  241;
  cost[14,2,42] =  304;
  cost[14,3,42] =  294;
  cost[14,4,42] =  231;
  cost[14,5,42] =  239;
  cost[14,6,42] =  229;
  cost[14,7,42] =  186;
  cost[14,8,42] =  432;
  cost[14,9,42] =  246;
  cost[14,10,42] =  202;
  cost[14,11,42] =  85;
  cost[14,12,42] =  466;
  cost[14,13,42] =  2;
  cost[14,14,42] =  0;
  cost[14,15,42] =  453;
  cost[14,16,42] =  427;
  cost[14,17,42] =  262;
  cost[14,18,42] =  55;
  cost[14,19,42] =  314;
  cost[14,20,42] =  209;
  cost[14,21,42] =  25;
  cost[15,0,42] =  9;
  cost[15,1,42] =  254;
  cost[15,2,42] =  336;
  cost[15,3,42] =  264;
  cost[15,4,42] =  287;
  cost[15,5,42] =  110;
  cost[15,6,42] =  166;
  cost[15,7,42] =  242;
  cost[15,8,42] =  183;
  cost[15,9,42] =  429;
  cost[15,10,42] =  333;
  cost[15,11,42] =  371;
  cost[15,12,42] =  163;
  cost[15,13,42] =  440;
  cost[15,14,42] =  453;
  cost[15,15,42] =  0;
  cost[15,16,42] =  188;
  cost[15,17,42] =  476;
  cost[15,18,42] =  167;
  cost[15,19,42] =  413;
  cost[15,20,42] =  389;
  cost[15,21,42] =  149;
  cost[16,0,42] =  467;
  cost[16,1,42] =  433;
  cost[16,2,42] =  112;
  cost[16,3,42] =  433;
  cost[16,4,42] =  444;
  cost[16,5,42] =  263;
  cost[16,6,42] =  417;
  cost[16,7,42] =  439;
  cost[16,8,42] =  189;
  cost[16,9,42] =  81;
  cost[16,10,42] =  114;
  cost[16,11,42] =  431;
  cost[16,12,42] =  44;
  cost[16,13,42] =  127;
  cost[16,14,42] =  427;
  cost[16,15,42] =  188;
  cost[16,16,42] =  0;
  cost[16,17,42] =  434;
  cost[16,18,42] =  455;
  cost[16,19,42] =  150;
  cost[16,20,42] =  387;
  cost[16,21,42] =  34;
  cost[17,0,42] =  68;
  cost[17,1,42] =  131;
  cost[17,2,42] =  466;
  cost[17,3,42] =  175;
  cost[17,4,42] =  328;
  cost[17,5,42] =  76;
  cost[17,6,42] =  116;
  cost[17,7,42] =  262;
  cost[17,8,42] =  114;
  cost[17,9,42] =  422;
  cost[17,10,42] =  314;
  cost[17,11,42] =  453;
  cost[17,12,42] =  305;
  cost[17,13,42] =  116;
  cost[17,14,42] =  262;
  cost[17,15,42] =  476;
  cost[17,16,42] =  434;
  cost[17,17,42] =  0;
  cost[17,18,42] =  181;
  cost[17,19,42] =  36;
  cost[17,20,42] =  345;
  cost[17,21,42] =  308;
  cost[18,0,42] =  246;
  cost[18,1,42] =  129;
  cost[18,2,42] =  176;
  cost[18,3,42] =  406;
  cost[18,4,42] =  429;
  cost[18,5,42] =  160;
  cost[18,6,42] =  362;
  cost[18,7,42] =  402;
  cost[18,8,42] =  116;
  cost[18,9,42] =  131;
  cost[18,10,42] =  45;
  cost[18,11,42] =  435;
  cost[18,12,42] =  57;
  cost[18,13,42] =  270;
  cost[18,14,42] =  55;
  cost[18,15,42] =  167;
  cost[18,16,42] =  455;
  cost[18,17,42] =  181;
  cost[18,18,42] =  0;
  cost[18,19,42] =  132;
  cost[18,20,42] =  480;
  cost[18,21,42] =  343;
  cost[19,0,42] =  256;
  cost[19,1,42] =  332;
  cost[19,2,42] =  60;
  cost[19,3,42] =  347;
  cost[19,4,42] =  371;
  cost[19,5,42] =  331;
  cost[19,6,42] =  453;
  cost[19,7,42] =  286;
  cost[19,8,42] =  306;
  cost[19,9,42] =  323;
  cost[19,10,42] =  74;
  cost[19,11,42] =  462;
  cost[19,12,42] =  437;
  cost[19,13,42] =  172;
  cost[19,14,42] =  314;
  cost[19,15,42] =  413;
  cost[19,16,42] =  150;
  cost[19,17,42] =  36;
  cost[19,18,42] =  132;
  cost[19,19,42] =  0;
  cost[19,20,42] =  397;
  cost[19,21,42] =  313;
  cost[20,0,42] =  271;
  cost[20,1,42] =  48;
  cost[20,2,42] =  361;
  cost[20,3,42] =  302;
  cost[20,4,42] =  196;
  cost[20,5,42] =  151;
  cost[20,6,42] =  62;
  cost[20,7,42] =  414;
  cost[20,8,42] =  477;
  cost[20,9,42] =  378;
  cost[20,10,42] =  262;
  cost[20,11,42] =  451;
  cost[20,12,42] =  63;
  cost[20,13,42] =  190;
  cost[20,14,42] =  209;
  cost[20,15,42] =  389;
  cost[20,16,42] =  387;
  cost[20,17,42] =  345;
  cost[20,18,42] =  480;
  cost[20,19,42] =  397;
  cost[20,20,42] =  0;
  cost[20,21,42] =  175;
  cost[21,0,42] =  122;
  cost[21,1,42] =  107;
  cost[21,2,42] =  183;
  cost[21,3,42] =  320;
  cost[21,4,42] =  35;
  cost[21,5,42] =  262;
  cost[21,6,42] =  71;
  cost[21,7,42] =  181;
  cost[21,8,42] =  86;
  cost[21,9,42] =  393;
  cost[21,10,42] =  228;
  cost[21,11,42] =  385;
  cost[21,12,42] =  238;
  cost[21,13,42] =  49;
  cost[21,14,42] =  25;
  cost[21,15,42] =  149;
  cost[21,16,42] =  34;
  cost[21,17,42] =  308;
  cost[21,18,42] =  343;
  cost[21,19,42] =  313;
  cost[21,20,42] =  175;
  cost[21,21,42] =  0;
