Task: Program Execution
Input (English): 3, 13, ['2021', 'N', 'K', '4929', '5009', '8581', '9197', 'U', 'F', '7495', '7879', '9661', '241', '1769', '2145', '437', 's', '915']
Output (English): 241, 9661, 7879, 7495, F, U, 9197, 8581, 5009, 4929, K