Task: Program Execution
Input (English): 13, 14, ['3807', '1669', '2341', '5803', '4189', '7797', '599', '5559', '909', '793', 'P', '4637', 'z', 'T', '747', 'i', 'd', 'z', 'z', '7519', '293', 'O', 'T', '3381', '1393', '1323']
Output (English): Tz