| | | | | | | | | | | | | | | | | 1 . | | | | | | | | | | | | 100 - 1 = 0 | | | 100 | 1 100 1 99 | 0 | | | 2 . | | | | | | | | | | | | | | | | | | | | | | 3 . | | | | | | | | | | | | | | | | | | | | | | | | | | | 1 . | | | | | | | | | | | 2 . | | | | | | | | | 3 . | | | | | | | | |