Task: Program Execution
Input (English): 1, 3, ['8167', '3731', 'L', '5143', '5253', '7391', '1789', '9109', 'l', 's', 'U', '3917', 'h', '3399', '5341', 'M', 'x', 'I', 'V']
Output (English): L, 3731, 8167