Task: Program Execution
Input (English): 3957 7727 2059 I 8429 o 3857 9525 2745 3559 511 J 7927 P 6495 l 4597 7587 j g 5373 1279 S R 2111
Output (English): 1, 2, 3, 5, 7, 8, 9, 10, 11, 13, 15, 17, 18, 21, 22, 25