Task: Program Execution
Input (English): 16, ['a', '5785', '1819', '6217', 'z', 'a', '3699', '9711', 'T', '815', 'Z', 'C', '7341', 'U', '4935', 'O', '9331', 'W', '6187', 'r', '1251', 'G', 'f', 'J', '7443', '6713', '9941', 'W', 'i', 'f', '6191', '6751', 'x', '849', 'i', '7471', '357']
Output (English): a, 9331, x