跟着消防员爸爸学习C++编程与算法（请备注算法学习）
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| 73 + 14 - 81 = | 37 - 26 + 44 = | 20 - 11 + 35 = | 65 - 45 + 11 = |
| 16 + 52 + 18 = | 43 + 42 - 80 = | 77 - 10 - 22 = | 44 + 21 + 10 = |
| 56 + 33 - 58 = | 76 - 51 + 36 = | 80 - 61 + 40 = | 83 - 33 + 11 = |
| 57 - 15 + 47 = | 37 + 38 + 21 = | 64 - 43 - 11 = | 80 - 30 + 12 = |
| 45 - 25 - 12 = | 55 - 30 + 50 = | 24 - 22 + 26 = | 76 - 63 + 32 = |
| 37 + 24 - 45 = | 75 - 13 + 13 = | 26 + 16 + 33 = | 64 - 55 + 46 = |
| 16 + 75 - 16 = | 92 - 60 - 17 = | 33 + 43 - 30 = | 56 - 10 + 34 = |
| 78 - 73 + 92 = | 68 + 21 + 10 = | 83 - 25 + 26 = | 25 - 18 + 64 = |
| 52 - 51 + 55 = | 56 - 17 + 51 = | 36 + 40 + 22 = | 87 - 62 + 73 = |
| 40 + 15 - 21 = | 16 + 23 - 32 = | 24 + 23 + 35 = | 73 - 65 + 22 = |
| 79 + 19 - 36 = | 41 - 39 + 77 = | 81 - 11 + 29 = | 80 - 64 + 30 = |
| 20 - 14 + 90 = | 34 + 57 - 39 = | 42 + 15 + 27 = | 39 + 30 + 17 = |
| 27 + 41 + 23 = | 43 - 15 - 17 = |
消防员爸爸