Task: Program Execution
Input (English): 7495 7981 9963 f 945 5187 7049 2727 f O g u n 9357 a 7759 6399 8553 3145 5007 A 8553 4417 2313 L W 5309
Output (English): 4, 9, 10, 11, 12, 13, 15, 21, 25, 26