Task: Program Execution
Input (English): 4, 12, ['8467', '9703', 'u', 'Q', '8599', '1021', '3837', 'X', 'R', '7529', '8873', '4697', 'S', 'n', '7911', 'v', '5893', '3037', '437', '39']
Output (English): 796437889257RX738312019958Q