Task: Program Execution
Input (English): 12, 20, ['3983', '9539', 's', '529', 'W', 'B', 'W', '3413', '1959', '2995', '6551', '4787', '9889', 'F', '3451', '359', '8907', '5459', '4941', '8015', 'k', 'k', '423', '8181']
Output (English): 8015, 4941, 5459, 8907, 359, 3451, F, 9889, 4787