Task: Program Execution
Input (English): 4355 6007 9777 b N u 3047 4993 N 8531 e 9477 S 3683 S L v p B 8163 7871 5509 6697 2225 4201 827
Output (English): 4, 5, 6, 9, 11, 13, 15, 16, 17, 18, 19