Sympy

A grade

{ 3, 8, 13, 18, 22, 26 }

B grade

{ 12, 25 }

C grade

{ }

F normal fail

{ 1, 2, 5, 6, 7, 10, 11, 16, 17, 20, 21, 24, 29, 30, 32, 33 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }