Maple

A grade

{ 1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 17, 18, 19, 20, 23, 24, 25, 28, 29, 30, 51, 55, 65, 66, 67, 70, 71, 72, 73, 76, 77, 78, 79, 84, 88, 92, 97, 101, 107, 113, 118, 121, 122, 123, 124, 125, 128, 129, 130, 131, 133, 134, 135, 139, 140 }

B grade

{ 33, 34, 35, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 68, 69, 138 }

C grade

{ 4, 10, 16, 126, 127 }

F normal fail

{ 82, 83, 87, 91, 95, 96, 100, 104, 105, 106, 110, 111, 112, 116, 117, 132, 145, 146, 147, 160, 161, 162, 165, 166, 169, 170, 171, 174, 175 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }