2.1.2 Mma

A grade

{ 3, 6, 10, 11, 12, 13, 14, 16 }

B grade

{ 2, 4, 5, 7, 8, 9, 15, 17 }

C grade

{ 1 }

F normal fail

{ }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }