Task: Program Execution
Input (English): 11, 15, ['6479', '9731', '9547', 'h', '3413', 'b', '5773', 'L', 'B', 'D', '4097', '6209', 'Y', 'D', '5423', 'I', 'E']
Output (English): 4097, 6209, Y, D, 5423