Task: Program Execution
Input (English): 6557 h c b a 7731 M 7093 F i u 5291 6543 F w t 9703 3305 O 3941 6679 N 9149 g i W 9957 8377 b 9371 c X Q 263 w 811 401 57 n
Output (English): 2, 3, 4, 5, 7, 9, 10, 11, 14, 15, 16, 19, 22, 24, 25, 26, 29, 31, 32, 33, 35, 39