40 | X | 1 | = | 40 |
40 | X | 2 | = | 80 |
40 | X | 3 | = | 120 |
40 | X | 4 | = | 160 |
40 | X | 5 | = | 200 |
40 | X | 6 | = | 240 |
40 | X | 7 | = | 280 |
40 | X | 8 | = | 320 |
40 | X | 9 | = | 360 |
40 | X | 10 | = | 400 |
40 | X | 11 | = | 440 |
40 | X | 12 | = | 480 |
40 | X | 13 | = | 520 |
40 | X | 14 | = | 560 |
40 | X | 15 | = | 600 |
40 | X | 16 | = | 640 |
40 | X | 17 | = | 680 |
40 | X | 18 | = | 720 |
40 | X | 19 | = | 760 |
40 | X | 20 | = | 800 |