Task: Program Execution
Input (English): 6123 1623 f 8885 q 8885 s T C m h p D 7151 5509 4421 9627 F 6225 8415 8717 7819 S v Z O 371 9853 V 3701 G
Output (English): 3, 5, 7, 8, 9, 10, 11, 12, 13, 18, 23, 24, 25, 26, 29, 31