0 | X | 1 | = | 0 |
0 | X | 2 | = | 0 |
0 | X | 3 | = | 0 |
0 | X | 4 | = | 0 |
0 | X | 5 | = | 0 |
0 | X | 6 | = | 0 |
0 | X | 7 | = | 0 |
0 | X | 8 | = | 0 |
0 | X | 9 | = | 0 |
0 | X | 10 | = | 0 |
0 | X | 11 | = | 0 |
0 | X | 12 | = | 0 |
0 | X | 13 | = | 0 |
0 | X | 14 | = | 0 |
0 | X | 15 | = | 0 |
0 | X | 16 | = | 0 |
0 | X | 17 | = | 0 |
0 | X | 18 | = | 0 |
0 | X | 19 | = | 0 |
0 | X | 20 | = | 0 |