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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| 21 + 44 = | 42 - 24 = | 47 + 43 = | 41 + 41 = |
| 49 - 43 = | 89 - 62 = | 25 + 34 = | 54 + 38 = |
| 100 - 88 = | 79 - 22 = | 11 + 48 = | 11 + 38 = |
| 78 - 57 = | 59 + 21 = | 31 - 14 = | 16 + 83 = |
| 18 + 81 = | 29 - 28 = | 48 + 26 = | 59 + 41 = |
| 45 + 53 = | 91 - 85 = | 100 - 21 = | 91 - 90 = |
| 96 - 82 = | 58 + 12 = | 56 + 17 = | 61 - 56 = |
| 44 + 37 = | 61 - 15 = | 44 + 27 = | 80 - 66 = |
| 23 + 66 = | 63 - 54 = | 71 + 24 = | 11 + 55 = |
| 99 - 93 = | 92 - 79 = | 86 - 42 = | 87 - 63 = |
| 60 - 55 = | 17 + 82 = | 78 - 67 = | 100 - 73 = |
| 57 + 35 = | 86 - 61 = | 39 + 25 = | 31 - 22 = |
| 46 + 44 = | 48 + 42 = |
消防员爸爸