2.1.8 Sympy

A grade

{ 1, 2, 10, 18, 19, 20, 24, 25, 31, 33, 34, 35, 36, 46, 48 }

B grade

{ 28, 37, 40 }

C grade

{ 16 }

F normal fail

{ 3, 6, 7, 8, 9, 14, 17, 21, 22, 26, 27, 29, 30, 32, 38, 39, 41, 42, 43, 45, 47, 49 }

F(-1) timedout fail

{ 4, 5, 11, 12, 13, 15, 23, 44, 50 }

F(-2) exception fail

{ }