Task: Program Execution
Input (English): f 339 977 3995 3807 R 4103 s O 5297 33 4227 5947 j 8787 9237 g k v G P 1121 9795 v 9233
Output (English): 1, 6, 8, 9, 14, 17, 18, 19, 20, 21, 24