123 + 45 = 168, 987 - 234 = 753, 678 - 45 = 633,167 + 462 = 629, 278 + 287 = 565, 366 + 555 = 921,475 + 347 = 822, 515 - 346 = 169,
522 + 376 = 898, 689 - 231 = 458, 345 - 201 = 144, 987 - 679 = 308.
123 + 45 = 168, 987 - 234 = 753, 678 - 45 = 633,
167 + 462 = 629, 278 + 287 = 565, 366 + 555 = 921,
475 + 347 = 822, 515 - 346 = 169,
522 + 376 = 898, 689 - 231 = 458, 345 - 201 = 144, 987 - 679 = 308.