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