17 2 F VARIABLE 1 8 F 2 L M VARIABLE 2 8 F 2 L Case 0 F M Case 1 4 2 Case 2 4 3 Case 3 5 3 Case 4 5 3 Case 5 3 3 Case 6 2 3 Case 7 5 3 Case 8 3 3 Case 9 1 2 Case 10 5 3 Case 11 5 2 Case 12 5 2 Case 13 4 5 Case 14 5 2 Case 15 5 5 Case 16 5 3 Case 17 5 1