Task: Program Execution
Input (English): 12, 13, ['5473', '4837', 'P', 'X', '9541', 'y', '2887', '5785', '9213', '4785', '613', 'W', 'Q', 'i', 'G', 'W', 'c', '4937', 'U', 'Y', 'd', 'L']
Output (English): W, Q