Task: Program Execution
Input (English): X 9269 k Y 5443 1827 d 6583 7785 7711 d D 4789 b j 2469 9215 C Z k 4369 O U 7905 2927 z H 181 5347 871 17 k
Output (English): 2, 5, 6, 8, 9, 10, 13, 16, 17, 21, 24, 25, 28, 29, 30, 31