2.1.6 Giac

A grade

{ 3, 4 }

B grade

{ 1, 2, 16, 17, 18, 19, 20, 21, 22, 23, 24 }

C grade

{ 25, 26, 27 }

F normal fail

{ 5, 6, 7, 8, 13, 14, 15 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ 9, 10, 11, 12 }