Task: Program Execution
Input (English): 4, 8, ['6453', '8447', '3351', 'F', '1485', '7405', 'B', '2439', '3181', 'A', 'q', '4247', 'a', 'c', '3443', '49', '3283', 'v', '9403', '6143', '2287', '7841', '2837']
Output (English): F, 4247, 6143