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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| 508 + 491 = | 989 + 869 = | 289 + 860 = | 262 + 688 = |
| 218 + 792 = | 960 - 628 = | 863 - 839 = | 936 - 565 = |
| 668 + 836 = | 669 - 565 = | 629 - 569 = | 264 - 137 = |
| 709 - 535 = | 362 + 159 = | 402 + 918 = | 351 + 502 = |
| 949 - 876 = | 787 + 696 = | 567 + 664 = | 345 + 423 = |
| 717 - 279 = | 310 - 187 = | 102 - 100 = | 717 - 146 = |
| 516 + 392 = | 541 + 759 = | 501 - 467 = | 242 - 221 = |
| 959 - 755 = | 591 + 260 = | 119 - 104 = | 395 + 361 = |
| 508 - 277 = | 720 - 265 = | 862 + 972 = | 948 + 922 = |
| 218 - 190 = | 734 - 176 = | 636 + 250 = | 716 + 361 = |
| 716 + 167 = | 150 + 768 = | 150 - 137 = | 774 + 871 = |
| 636 - 189 = | 343 - 216 = | 119 + 290 = | 591 - 187 = |
| 965 - 177 = | 241 + 747 = | 606 - 429 = | 396 - 186 = |
| 867 + 747 = | 964 + 181 = | 789 + 471 = | 709 + 743 = |
| 262 - 218 = | 958 + 786 = | 790 - 384 = | 541 - 423 = |
| 242 - 202 = | 342 + 529 = | 868 - 652 = | 720 + 340 = |
| 309 + 472 = | 188 - 112 = | 263 + 304 = | 568 - 558 = |
| 330 + 694 = | 774 - 677 = | 567 + 981 = | 698 + 674 = |
| 227 + 371 = | 345 - 188 = | 362 - 117 = | 698 - 481 = |
| 102 + 350 = | 188 + 222 = | 262 - 205 = | 568 - 393 = |
| 564 - 487 = | 990 - 861 = | 733 + 207 = | 998 + 931 = |
| 262 + 756 = | 564 + 851 = | 352 - 212 = | 959 + 652 = |
| 788 - 556 = | 628 + 898 = | 289 - 259 = | 227 - 138 = |
| 516 - 235 = | 935 + 600 = | 402 - 374 = | 242 + 872 = |
| 331 - 252 = | 605 + 686 = | 500 + 923 = | 999 - 930 = |
消防员爸爸