Task: Program Execution
Input (English): 15, 17, ['P', 'H', '9731', 'A', '1807', 'D', '3331', 'N', 'K', '659', 'D', 'F', '7143', '4103', 'Y', '6599', 'm', '4721', '5975', 'F', 'o']
Output (English): Y6599m