Maple

A grade

{ 1, 9, 22, 38, 55, 71, 72, 76, 79, 80 }

B grade

{ 4, 5, 6, 12, 16, 20, 25, 29, 33, 42, 46, 50, 59, 63, 67, 70, 73, 74, 75, 77, 78 }

C grade

{ 2, 10, 11, 14, 15, 18, 19, 23, 24, 27, 28, 31, 32, 35, 36, 37, 40, 41, 44, 45, 48, 49, 52, 53, 54, 57, 58, 61, 62, 65, 66, 69, 81, 82, 83, 84, 85, 86 }

F normal fail

{ }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }