Sympy

A grade

{ }

B grade

{ 30 }

C grade

{ }

F normal fail

{ 3, 4, 5, 7, 8, 12, 13, 14, 15, 19, 20, 21, 23, 27, 28, 29, 31 }

F(-1) timedout fail

{ 1, 2, 6, 9, 10, 11, 16, 17, 18, 22, 24, 25, 26 }

F(-2) exception fail

{ 32 }