Task: Program Execution
Input (English): 6, 8, ['2403', 'x', '1229', '5545', 'O', 'F', '5037', '9021', '4101', 'R', '7231', 'Q', 'F', '1009', '8109', '841', '3921', 'm', '9361', 'B', 'f', 'n', '8913']
Output (English): F, 5037, 9021