Task: Program Execution
Input (English): 9413 f d X 5237 q b 5511 6861 Q A p P J 5941 6469 5805 p C W A 8683 8383 L x 5997 6615 2911 n 7889 455 6627 1681 8147 2433 7963 o
Output (English): 2, 3, 4, 6, 7, 10, 11, 12, 13, 14, 18, 19, 20, 21, 24, 25, 29, 37