Task: Program Execution
Input (English): 6979 Q P 1879 e 5989 2531 Q 7201 E H 7779 4185 9479 8237 J 2369 T a Y 6777 6577 3859 7601 9531 5007
Output (English): 1, 4, 6, 7, 9, 12, 13, 14, 15, 17, 21, 22, 23, 24, 25, 26