Task: Program Execution
Input (English): 10, 15, ['4531', '657', 'x', 'a', '6601', '1889', '1029', 'B', 'a', 'N', '8659', 'D', 'G', '9249', '3307', '2409', 'd', '5857']
Output (English): 3307, 9249, G, D, 8659, N