Task: Program Execution
Input (English): 2109 X U 2545 d 6689 8913 1441 1759 w k Q w 3151 Y 277 G k 4313 b 2559 d N G F R 4647 p 2443 8221 1815
Output (English): 1, 4, 6, 7, 8, 9, 14, 16, 19, 21, 27, 29, 30, 31