Maxima

A grade

{ }

B grade

{ 1, 2, 6, 7, 11, 12, 13, 16, 17, 18, 24, 25, 29, 30 }

C grade

{ }

F normal fail

{ 3, 8, 26, 31 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ 34, 35, 36, 39, 40, 41 }