Task: Program Execution
Input (English): 9, ['4277', '7671', '5525', '1983', 'M', 'N', 'r', 'w', '3385', 'm', 'R', 'x', '3057', '9141', 'Q', 'q', 'J', 'Y', 'B', 'v', '6067', '2481']
Output (English): 4277, m, B