Task: Program Execution
Input (English): 3, 4, ['4709', '9335', 'v', 'n', '9481', '8839', '237', 'R', 'Y', '381', '6605', '3027', 'K', 'B', '9669', '2197', '7995', 'y', 'U', 'V']
Output (English): v, 237, 6605, 9669, U