Task: Program Execution
Input (English): 5749 r 8301 8423 5963 2591 I x 9885 a 9655 n 4275 9633 493 8749 Y U b L 3039 1781 2487 3463 8931 W 5057
Output (English): 1, 3, 4, 5, 6, 9, 11, 13, 14, 15, 16, 21, 22, 23, 24, 25, 27