Task: Program Execution
Input (English): 16, 19, ['3389', 'U', '6807', 'y', '3789', '6515', 'S', '6551', 'c', '7609', '7863', 'O', '1643', '7381', '2405', 'L', '2433', '613', 'd', '8983']
Output (English): L, 2433, 613, d