Case 1: total time = 160 nanoseconds
Case 2: total time = 170 nanoseconds
Case 3: total time = 334 nanoseconds
Case 4: total time = 384 nanoseconds
Case 5: total time = 11791 nanoseconds
Case 6: total time = 12741 nanoseconds
Case 7: total time = 10191 nanoseconds