Task: Program Execution
Input (English): 17, 18, ['1207', 'R', 'z', '6959', 'T', 'y', 'K', 'p', '6347', 'O', '7993', 'a', 'w', '3925', '6529', '6623', '1523', 'U', 't', '8037', 'Q', '5619', '3411', '8717', '9483', 'O', 'B']
Output (English): 1523