2.1.6 Giac

A grade

{ 12 }

B grade

{ 11, 14, 16 }

C grade

{ }

F normal fail

{ 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 15, 17 }

F(-1) timedout fail

{ 1 }

F(-2) exception fail

{ }