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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| 68 - 64 = | 83 - 69 = | 99 - 75 = | 80 - 72 = |
| 46 + 36 = | 81 - 53 = | 48 + 42 = | 33 + 61 = |
| 54 + 46 = | 90 - 81 = | 42 - 23 = | 67 - 56 = |
| 34 + 26 = | 30 + 11 = | 27 + 23 = | 28 + 25 = |
| 97 - 54 = | 39 + 13 = | 48 + 44 = | 40 + 58 = |
| 49 + 49 = | 45 + 39 = | 78 - 15 = | 59 - 48 = |
| 15 + 80 = | 42 - 35 = | 45 + 15 = | 49 + 41 = |
| 58 + 37 = | 50 + 49 = | 13 + 84 = | 59 + 38 = |
| 51 + 38 = | 32 + 54 = | 81 - 65 = | 29 - 18 = |
| 99 - 27 = | 91 - 85 = | 90 - 73 = | 49 + 12 = |
| 80 - 32 = | 34 - 33 = | 24 + 70 = | 20 + 51 = |
| 79 - 77 = | 97 - 36 = | 49 + 43 = | 90 - 83 = |
| 94 - 25 = | 100 - 61 = | 20 + 67 = | 33 + 36 = |
| 63 + 20 = | 90 - 19 = | 92 - 88 = | 12 + 17 = |
| 29 - 28 = | 64 - 15 = | 70 - 62 = | 93 - 36 = |
| 47 + 45 = | 81 - 63 = | 54 - 31 = | 89 - 30 = |
| 45 + 18 = | 19 + 11 = | 92 - 71 = | 81 - 56 = |
| 30 + 59 = | 79 - 73 = | 69 - 67 = | 30 + 53 = |
| 23 + 75 = | 83 - 24 = | 28 - 17 = | 31 + 63 = |
| 30 + 69 = | 93 - 89 = | 85 - 61 = | 57 + 27 = |
| 52 + 28 = | 84 - 78 = | 32 + 24 = | 69 - 60 = |
| 85 - 79 = | 94 - 42 = | 95 - 83 = | 55 - 50 = |
| 70 - 27 = | 21 + 30 = | 20 + 71 = | 29 + 21 = |
| 27 + 31 = | 95 - 74 = | 48 + 22 = | 68 + 32 = |
| 48 + 48 = | 34 + 29 = | 100 - 99 = | 43 + 44 = |
消防员爸爸