Task: Program Execution
Input (English): 16, 17, ['8441', 'Y', '9443', 'y', '443', 'u', 't', '2803', '2787', '4429', '9617', '7931', '1527', '3045', '8875', 'F', '7869', '8863', '8455', 'U', '7209', '1079', '1471', 'S', 'B']
Output (English): 7869