Task: Program Execution
Input (English): 13, ['4009', 'U', '703', '8871', '6463', '7307', '9057', 'q', '1201', '8041', '6567', '1669', 'E', 'W', 'Q', '1577', '7423', '7087', '9061', '303', '8583', 'Q', '2295', '7145', '3393', '545', '8391', '3083', 'W', 'Y']
Output (English): 4009, W, 8391