Mma

A grade

{ 1, 2, 3, 6, 7, 8, 11, 13, 18, 24, 25, 26, 29, 30, 31, 34, 35, 36, 41 }

B grade

{ 12, 16, 17, 39, 40 }

C grade

{ }

F normal fail

{ }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }