2.1.8 Sympy

A grade

{ 4, 7, 8, 12, 15, 16, 20, 23, 24, 28, 34, 35, 41, 42, 49, 79, 84, 85, 90 }

B grade

{ 25, 26, 27, 32, 33, 39, 40, 91 }

C grade

{ }

F normal fail

{ 1, 2, 3, 9, 10, 11, 17, 18, 19, 29, 30, 31, 36, 37, 38, 43, 44, 45, 46, 47, 48, 55, 58, 59, 60, 61, 64, 65, 66, 70, 71, 72, 76, 77, 78, 82, 83, 88, 89 }

F(-1) timedout fail

{ 52, 53, 54 }

F(-2) exception fail

{ }