Maxima

A grade

{ 1, 3, 5, 7, 8, 10, 11, 12, 19, 20, 22, 33, 34 }

B grade

{ 21, 23 }

C grade

{ 4 }

F normal fail

{ 2, 6, 9, 13, 14, 15, 16, 17, 18, 24, 25, 26, 27, 28, 29, 30, 31, 32, 35 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }