Task: Program Execution
Input (English): 18, 21, ['B', '3657', 'Q', 'F', 'j', '8285', 'u', 'j', '3681', 'C', '6507', '7711', '4813', 'S', '5513', '5033', 'C', '7055', 'W', '6547', '5323']
Output (English): 7055, W, 6547, 5323