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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| 90 - 41 = | 70 - 35 = | 40 - 31 = | 73 - 59 = |
| 83 - 19 = | 90 - 85 = | 94 - 89 = | 85 - 67 = |
| 95 - 27 = | 53 - 48 = | 90 - 82 = | 87 - 69 = |
| 86 - 57 = | 100 - 63 = | 92 - 85 = | 100 - 56 = |
| 90 - 48 = | 31 - 14 = | 80 - 65 = | 52 - 33 = |
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