Task: Program Execution
Input (English): 18, 22, ['n', '9171', '5869', '8843', 'h', '7987', 'c', 'W', '2803', '4117', 'q', 'B', '845', '2193', 'm', '2639', 'Z', 'X', 'L', 'B', '6351', 's', '9981', 'M']
Output (English): s6351BLX