1 | X | 1 | = | 1 |
1 | X | 2 | = | 2 |
1 | X | 3 | = | 3 |
1 | X | 4 | = | 4 |
1 | X | 5 | = | 5 |
1 | X | 6 | = | 6 |
1 | X | 7 | = | 7 |
1 | X | 8 | = | 8 |
1 | X | 9 | = | 9 |
1 | X | 10 | = | 10 |
1 | X | 11 | = | 11 |
1 | X | 12 | = | 12 |
1 | X | 13 | = | 13 |
1 | X | 14 | = | 14 |
1 | X | 15 | = | 15 |
1 | X | 16 | = | 16 |
1 | X | 17 | = | 17 |
1 | X | 18 | = | 18 |
1 | X | 19 | = | 19 |
1 | X | 20 | = | 20 |