Task: Program Execution
Input (English): D y 9575 4081 m b 7567 5415 7383 5339 w O 8985 L 8637 q 8605 4223 O D 4109 s L k p
Output (English): 3, 4, 7, 8, 9, 10, 13, 15, 17, 18, 21