2.1.8 Sympy

A grade

{ 2, 3, 19 }

B grade

{ 1, 9, 16, 26, 27, 35, 36, 37, 38, 39, 40, 58, 59, 63, 74 }

C grade

{ }

F normal fail

{ 4, 5, 10, 11, 17, 28, 29, 30, 31, 32, 41, 42, 43, 44, 45, 46, 51, 52, 53, 54, 55, 64, 65, 66, 67, 68, 69, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85 }

F(-1) timedout fail

{ 6, 7, 8, 12, 13, 14, 15, 18, 20, 21, 22, 23, 24, 25, 33, 34, 47, 48, 49, 50, 56, 57, 60, 61, 62, 71, 72, 73, 75 }

F(-2) exception fail

{ 70 }