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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| 753 + 412 = | 330 + 368 = | 695 + 667 = | 836 + 112 = |
| 800 + 723 = | 230 - 138 = | 303 - 207 = | 582 - 550 = |
| 345 + 101 = | 303 + 577 = | 253 + 219 = | 821 - 748 = |
| 472 + 672 = | 110 + 291 = | 889 - 823 = | 974 - 691 = |
| 473 + 191 = | 608 - 237 = | 888 + 925 = | 915 + 844 = |
| 885 + 886 = | 141 + 710 = | 499 + 940 = | 912 + 520 = |
| 387 - 330 = | 253 - 120 = | 936 + 163 = | 753 - 326 = |
| 330 - 168 = | 533 - 483 = | 136 - 106 = | 348 - 285 = |
| 735 + 934 = | 828 + 770 = | 345 - 100 = | 816 + 525 = |
| 696 - 475 = | 581 + 941 = | 844 + 948 = | 707 - 414 = |
| 932 - 349 = | 408 + 736 = | 913 - 480 = | 371 - 190 = |
| 230 + 363 = | 736 - 689 = | 191 - 132 = | 370 + 399 = |
| 131 + 393 = | 710 - 643 = | 413 - 210 = | 642 + 144 = |
| 208 - 177 = | 386 + 823 = | 208 + 748 = | 964 + 203 = |
| 706 + 566 = | 507 - 408 = | 854 + 447 = | 973 + 708 = |
| 937 - 159 = | 931 + 369 = | 741 - 246 = | 844 - 801 = |
| 191 + 423 = | 767 + 963 = | 801 - 585 = | 767 - 740 = |
| 533 + 896 = | 348 + 772 = | 861 - 360 = | 855 - 391 = |
| 820 + 909 = | 424 + 734 = | 817 - 438 = | 136 + 274 = |
| 916 - 774 = | 408 - 317 = | 505 - 150 = | 607 + 343 = |
| 886 - 786 = | 116 + 778 = | 116 - 112 = | 837 - 110 = |
| 505 + 212 = | 741 + 305 = | 860 + 407 = | 131 - 110 = |
| 709 + 902 = | 642 - 126 = | 473 - 337 = | 500 - 473 = |
| 110 - 102 = | 507 + 782 = | 412 + 416 = | 829 - 642 = |
| 141 - 127 = | 965 - 199 = | 425 - 329 = | 474 - 138 = |
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