Task: Program Execution
Input (English): 1, 2, ['7997', 'U', '1989', 'O', '8609', 'w', '6057', '8127', 'o', '9979', '7765', '6165', '6009', '4423']
Output (English): 7997, 1989, 8609, 6057, o, 7765, 6009