Task: Program Execution
Input (English): 9, 12, ['1321', 'd', 'D', '8577', 'p', '2821', '3259', '1563', '6743', 'q', 'q', '2345', '853', '3031', '5981', '6633', 'F', 'R', 'd', '3469', '7033']
Output (English): 2345qq6743