Maxima

A grade

{ 18, 19, 22, 23, 26, 27, 30, 31, 34, 35, 36, 38, 39, 40, 42, 43, 44, 46, 47, 48 }

B grade

{ 20, 21, 24, 25, 28, 29, 32, 33, 37, 41, 45, 49 }

C grade

{ }

F normal fail

{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }