Task: Program Execution
Input (English): 19, 19, ['L', '2709', '7087', '8317', 'o', '8431', 'm', 'e', 'M', 'q', '2621', '3615', '2813', '9185', '4869', 'p', '3575', '1483', 'U', 'z', '7677']
Output (English): U