Sympy

A grade

{ 3, 61 }

B grade

{ }

C grade

{ }

F normal fail

{ 1, 2, 10, 11, 12, 19, 20, 21, 22, 29, 30, 31, 38, 39, 40, 41, 44, 45, 46, 49, 50, 51, 54, 55, 56, 59, 60, 64, 65, 66, 69, 70, 71, 74, 75, 76, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }