Task: Program Execution
Input (English): b 8683 o I o 7099 f 9399 3005 l 4723 p b 555 e 9459 935 6921 P U 8983 309 4279 3483 1623 K
Output (English): 2, 6, 8, 9, 11, 14, 16, 17, 18, 21, 22, 23, 24, 25