Task: Program Execution
Input (English): 14, 18, ['1993', 'x', 'M', 'E', 'J', '2489', 'J', '1725', 'g', 'A', '5977', '795', 'l', 'L', 'y', '5485', '8371', 'z', '9501', '8549', 'w', '6605', 'B', 's']
Output (English): z17385845yL