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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| 264 + 599 = | 194 + 447 = | 498 + 326 = | 589 + 129 = |
| 449 + 366 = | 177 + 655 = | 368 + 374 = | 199 + 582 = |
| 489 + 198 = | 317 + 197 = | 488 + 367 = | 172 + 658 = |
| 243 + 687 = | 595 + 198 = | 639 + 171 = | 397 + 547 = |
| 526 + 389 = | 566 + 347 = | 249 + 273 = | 166 + 796 = |
| 246 + 688 = | 379 + 378 = | 189 + 578 = | 453 + 399 = |
| 677 + 138 = | 365 + 145 = | 275 + 598 = | 522 + 298 = |
| 178 + 376 = | 459 + 199 = | 367 + 257 = | 747 + 176 = |
| 287 + 254 = | 488 + 434 = | 538 + 288 = | 366 + 295 = |
| 156 + 199 = | 347 + 495 = | 328 + 399 = | 517 + 293 = |
| 678 + 193 = | 499 + 127 = | 277 + 478 = | 175 + 547 = |
| 684 + 159 = | 288 + 376 = | 361 + 549 = | 689 + 255 = |
| 154 + 257 = | 239 + 186 = | 289 + 429 = | 538 + 294 = |
消防员爸爸