Task: Program Execution
Input (English): 10, 14, ['w', '899', '6513', '333', '3597', '5957', 'O', 'f', '5805', '7873', '4613', '5911', 'X', 'f', '1145', '9231', 'U', 'i']
Output (English): f, X, 5911, 4613, 7873