Task: Program Execution
Input (English): 15, 17, ['K', 'I', '2239', '339', '8391', 'A', '25', '7991', 'W', 'f', 'i', 'W', 'm', '6599', '1615', '3181', '2009', 'H']
Output (English): 2009, 3181, 1615