Maple

A grade

{ 32 }

B grade

{ 7, 16, 33 }

C grade

{ }

F normal fail

{ 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }