Task: Program Execution
Input (English): 4, 4, ['W', '5523', 'm', '8009', 'F', '547', 's', '4827', 'C', '3147', 'd', 'Y', '5767', '7709', '447', '3517', 'm', '3393', '6911', '8143', 'a', '9689', 'w', '6509', '5173', '9395', 'K', 'k', 'b']
Output (English): 8009, 4827, Y, 3517, 8143, 6509, k