Maple

A grade

{ 3, 7, 20, 25 }

B grade

{ 1, 2, 5, 6, 9, 10, 11, 19, 24, 28, 29 }

C grade

{ }

F normal fail

{ 13, 14, 15, 16, 17, 18, 22, 23, 26, 27 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }