Giac

A grade

{ 1, 2, 3, 4, 13, 14, 15, 16, 17, 19 }

B grade

{ 8, 9, 10, 11, 12, 20, 21, 22, 23, 24, 25, 35, 36, 37, 38 }

C grade

{ }

F normal fail

{ 28, 29, 30, 31, 33, 34 }

F(-1) timedout fail

{ 26, 27 }

F(-2) exception fail

{ 5, 6, 7, 18, 32 }