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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| 391 + 339 = | 576 + 389 = | 575 + 348 = | 136 + 476 = |
| 399 + 286 = | 358 + 573 = | 375 + 166 = | 386 + 365 = |
| 576 + 278 = | 147 + 783 = | 477 + 448 = | 256 + 678 = |
| 343 + 469 = | 325 + 496 = | 167 + 379 = | 163 + 679 = |
| 255 + 598 = | 687 + 146 = | 177 + 258 = | 582 + 189 = |
| 148 + 789 = | 423 + 189 = | 145 + 289 = | 559 + 189 = |
| 275 + 375 = | 198 + 257 = | 568 + 242 = | 183 + 779 = |
| 269 + 572 = | 467 + 359 = | 155 + 179 = | 278 + 178 = |
| 767 + 173 = | 288 + 588 = | 282 + 629 = | 367 + 393 = |
| 479 + 393 = | 236 + 494 = | 194 + 599 = | 336 + 177 = |
| 278 + 533 = | 289 + 152 = | 396 + 485 = | 354 + 468 = |
| 385 + 257 = | 589 + 246 = | 795 + 136 = | 449 + 267 = |
| 499 + 452 = | 115 + 298 = | 657 + 269 = | 368 + 473 = |
消防员爸爸