Task: Program Execution
Input (English): 3, 5, ['6247', '9233', '7549', 't', '7185', 'U', 'P', 'd', '5633', '9813', 'f', '3891', 'b', '893', '9489', 'x', '7245', 'o', 'O', '3449', 'o', 'G', '1769', '1391']
Output (English): 7549, d, b, o, 1769