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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| 25 + 25 = | 75 - 60 = | 80 - 71 = | 21 + 45 = |
| 93 - 64 = | 96 - 93 = | 13 + 86 = | 31 - 14 = |
| 99 - 52 = | 52 + 18 = | 100 - 41 = | 71 - 12 = |
| 80 - 22 = | 79 - 38 = | 21 + 78 = | 88 - 37 = |
| 32 + 28 = | 100 - 72 = | 46 - 38 = | 97 - 80 = |
| 25 + 70 = | 51 + 21 = | 66 + 34 = | 23 + 46 = |
| 27 + 23 = | 91 - 46 = | 14 + 14 = | 26 + 14 = |
| 52 + 48 = | 59 + 31 = | 41 - 32 = | 98 - 90 = |
| 44 + 31 = | 93 - 74 = | 40 + 20 = | 85 - 78 = |
| 49 + 49 = | 11 + 75 = | 28 + 19 = | 58 + 37 = |
| 49 + 11 = | 79 - 17 = | 83 - 81 = | 47 + 46 = |
| 82 - 67 = | 17 + 13 = | 11 + 13 = | 56 - 15 = |
| 17 + 82 = | 49 + 17 = | 82 - 44 = | 57 + 43 = |
| 49 + 21 = | 46 + 16 = | 31 + 48 = | 71 - 16 = |
| 11 + 15 = | 38 + 32 = | 72 - 34 = | 22 + 36 = |
| 31 + 33 = | 99 - 85 = | 94 - 49 = | 84 - 58 = |
| 34 + 25 = | 13 + 16 = | 39 - 18 = | 94 - 51 = |
| 70 - 23 = | 91 - 82 = | 59 + 41 = | 79 - 25 = |
| 52 - 15 = | 58 - 57 = | 42 - 31 = | 68 - 32 = |
| 14 + 72 = | 59 - 26 = | 49 + 42 = | 15 + 80 = |
| 78 + 12 = | 40 + 53 = | 67 + 29 = | 29 + 24 = |
| 48 + 47 = | 21 + 68 = | 20 + 69 = | 70 - 36 = |
| 29 - 27 = | 69 - 22 = | 95 - 76 = | 59 + 22 = |
| 68 - 63 = | 21 + 63 = | 67 - 59 = | 94 - 43 = |
| 87 - 55 = | 81 - 25 = | 27 - 19 = | 97 - 82 = |
消防员爸爸