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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| 274 + 698 = | 544 + 197 = | 237 + 177 = | 124 + 699 = |
| 227 + 684 = | 138 + 375 = | 587 + 135 = | 357 + 558 = |
| 754 + 196 = | 289 + 585 = | 583 + 147 = | 369 + 594 = |
| 385 + 537 = | 373 + 547 = | 281 + 129 = | 146 + 777 = |
| 579 + 167 = | 587 + 148 = | 619 + 299 = | 397 + 157 = |
| 197 + 148 = | 739 + 196 = | 679 + 161 = | 358 + 259 = |
| 292 + 458 = | 265 + 278 = | 469 + 264 = | 559 + 298 = |
| 176 + 554 = | 163 + 149 = | 523 + 398 = | 377 + 235 = |
| 593 + 269 = | 188 + 273 = | 199 + 327 = | 357 + 577 = |
| 165 + 679 = | 229 + 185 = | 392 + 539 = | 257 + 299 = |
| 199 + 548 = | 198 + 796 = | 279 + 685 = | 576 + 195 = |
| 256 + 655 = | 485 + 487 = | 415 + 399 = | 395 + 135 = |
| 649 + 199 = | 389 + 587 = | 166 + 149 = | 157 + 557 = |
消防员爸爸