digraph G{ "72" -> {"20";} "50" -> {"37";} "14" -> {"46";"54";"55";} "45" -> {"62";} "32" -> {"20";} "26" -> {"42";"16";} "6" -> {"64";} "69" -> {"73";} "33" -> {"37";} "49" -> {"37";} "63" -> {"6";"14";} "52" -> {"21";} "53" -> {"38";"24";"2";} "73" -> {} "12" -> {"40";} "5" -> {"13";"22";} "4" -> {"21";} "71" -> {"19";"36";} "25" -> {"34";"28";"26";} "31" -> {} "generate" -> {"background";} "34" -> {"41";"49";} "47" -> {"37";} "40" -> {"52";"30";} "18" -> {"35";} "28" -> {"65";"9";"17";} "16" -> {"70";"57";} "8" -> {} "56" -> {"69";"39";} "background" -> {"1";} "64" -> {"51";"7";"35";} "42" -> {"50";"58";"66";} "39" -> {"63";} "51" -> {"59";"35";} "65" -> {"37";} "11" -> {"29";"20";} "58" -> {"37";} "17" -> {"37";} "19" -> {"44";"32";} "13" -> {"68";"31";} "0" -> {"generate";"rules";"implementation";} "20" -> {"71";"3";"23";} "46" -> {"64";} "rules" -> {"rules1";"generate";"0";} "67" -> {"23";} "60" -> {"4";"12";} "21" -> {"5";"61";} "7" -> {"15";"43";} "23" -> {"60";"40";} "59" -> {"18";"27";} "30" -> {"21";} "68" -> {"64";} "15" -> {"64";} "62" -> {"71";"3";"23";} "48" -> {"5";} "38" -> {"62";} "29" -> {"20";} "rules1" -> {"generate";"0";} "36" -> {"20";} "9" -> {"37";} "10" -> {"5";} "24" -> {"62";} "57" -> {"37";} "22" -> {"63";"56";} "55" -> {} "70" -> {"37";} "2" -> {} "27" -> {} "43" -> {} "61" -> {"48";"8";} "54" -> {"64";} "35" -> {"73";"73";} "1" -> {"25";} "44" -> {"20";} "41" -> {"37";} "66" -> {"37";} "37" -> {"45";"53";} "3" -> {"11";"72";} }