A grade
{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 25, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 }
B grade
{ 24 }
C grade
{ 16, 17, 18, 19, 20, 21, 22, 23, 26, 27, 47, 48, 49, 50, 51, 52, 53, 65, 66, 67, 68, 69, 70 }
F normal fail
{ }
F(-1) timedout fail
{ }
F(-2) exception fail
{ }