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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| 49 + 48 = | 36 - 22 = | 91 - 72 = | 11 + 13 = |
| 86 - 35 = | 98 - 72 = | 99 - 96 = | 12 + 12 = |
| 20 + 38 = | 31 - 27 = | 29 - 18 = | 37 + 35 = |
| 91 - 68 = | 70 - 64 = | 12 + 87 = | 64 - 51 = |
| 44 + 19 = | 99 - 37 = | 31 + 51 = | 91 - 16 = |
| 46 + 45 = | 70 - 15 = | 92 - 90 = | 21 + 16 = |
| 29 + 27 = | 30 + 43 = | 49 + 25 = | 12 + 37 = |
| 30 + 54 = | 100 - 76 = | 77 - 75 = | 47 + 47 = |
| 65 + 29 = | 29 + 24 = | 46 + 17 = | 45 - 33 = |
| 68 + 13 = | 82 - 60 = | 54 - 25 = | 79 + 11 = |
| 100 - 99 = | 51 + 30 = | 49 - 38 = | 76 - 53 = |
| 94 - 89 = | 33 + 53 = | 70 - 43 = | 20 + 77 = |
| 92 - 19 = | 91 - 53 = | 100 - 84 = | 83 - 42 = |
| 54 - 28 = | 39 + 33 = | 36 + 34 = | 97 - 36 = |
| 41 - 38 = | 92 - 70 = | 48 + 42 = | 72 - 14 = |
| 48 + 44 = | 53 - 44 = | 51 + 49 = | 51 + 41 = |
| 11 + 28 = | 90 - 61 = | 37 + 23 = | 80 - 71 = |
| 85 - 18 = | 48 + 38 = | 86 - 84 = | 61 - 35 = |
| 61 - 42 = | 42 + 45 = | 59 + 31 = | 48 + 46 = |
| 46 + 14 = | 100 - 21 = | 59 - 17 = | 41 + 34 = |
| 48 - 20 = | 92 - 83 = | 87 - 76 = | 35 + 28 = |
| 68 - 57 = | 13 + 20 = | 11 + 86 = | 12 + 17 = |
| 20 + 68 = | 11 + 11 = | 71 + 22 = | 29 + 21 = |
| 55 - 13 = | 96 - 64 = | 79 - 58 = | 90 - 79 = |
| 12 + 65 = | 68 + 32 = | 32 + 35 = | 39 + 16 = |
消防员爸爸