Task: Program Execution
Input (English): Y 9763 3343 9469 U 7381 H 5857 e 8557 m 4959 6215 q Z j y 8605 723 y b 8209 6689 6139 e
Output (English): 1, 5, 7, 9, 11, 14, 15, 16, 17, 20, 21, 25