269 + 157 = 413
515 - 391 = 123
341 + 489 =830
558 - 47 = 511
23 + 865 = 888
164 - 38 =126
2 + 311 = 313
980 - 127 = 853
252 + 484 = 736
199 - 28 = 171
306 + 378 = 684
566 - 396 = 170
493 + 154 =647
617 - 396 =221
447 + 87 = 534
844 - 528 = 316
300 + 631 = 931
980 - 589 = 391
314 + 650 =964
237 - 22 = 215
149 + 40 = 189
876 - 618 = 258
315 + 37 =352
807 - 413 = 394