| 680 | X | 1 | = | 680 |
| 680 | X | 2 | = | 1360 |
| 680 | X | 3 | = | 2040 |
| 680 | X | 4 | = | 2720 |
| 680 | X | 5 | = | 3400 |
| 680 | X | 6 | = | 4080 |
| 680 | X | 7 | = | 4760 |
| 680 | X | 8 | = | 5440 |
| 680 | X | 9 | = | 6120 |
| 680 | X | 10 | = | 6800 |
| 680 | X | 11 | = | 7480 |
| 680 | X | 12 | = | 8160 |
| 680 | X | 13 | = | 8840 |
| 680 | X | 14 | = | 9520 |
| 680 | X | 15 | = | 10200 |
| 680 | X | 16 | = | 10880 |
| 680 | X | 17 | = | 11560 |
| 680 | X | 18 | = | 12240 |
| 680 | X | 19 | = | 12920 |
| 680 | X | 20 | = | 13600 |