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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| 58 + 22 = | 38 + 32 = | 69 + 12 = | 48 + 35 = |
| 34 + 18 = | 57 + 13 = | 48 + 45 = | 77 + 14 = |
| 51 + 49 = | 66 + 24 = | 27 + 27 = | 54 + 38 = |
| 48 + 33 = | 46 + 28 = | 54 + 36 = | 49 + 43 = |
| 48 + 18 = | 47 + 46 = | 55 + 39 = | 39 + 21 = |