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 + 42 = | 38 + 13 = | 58 + 42 = | 59 + 41 = |
| 47 + 15 = | 49 + 36 = | 22 + 19 = | 79 + 14 = |
| 55 + 45 = | 52 + 38 = | 59 + 25 = | 47 + 46 = |
| 55 + 37 = | 47 + 13 = | 48 + 44 = | 34 + 18 = |
| 54 + 46 = | 67 + 16 = | 49 + 41 = | 49 + 31 = |