Task: Program Execution
Input (English): 3, ['9889', '7531', 'W', 'q', 'x', 'z', '2721', 'B', 'j', '3899', '8591', 'C', 's', '2843', 'd', 'u', 'r', '3597']
Output (English): 9889, q, 2721, 3899, s, u