Task: Program Execution
Input (English): 8421 G 6221 7571 4285 7661 4437 y o 8003 X R 2101 3179 l 2415 N e 8449 1209 4365 473 4229 l 9985 Q s e D 6111
Output (English): 2, 8, 9, 11, 12, 15, 17, 18, 24, 26, 27, 28, 29