Task: Program Execution
Input (English): 7, 18, ['7415', '9565', 'B', '4791', 'O', 'r', '2791', 'A', 'V', 'P', '4737', 's', '6987', 'y', '1847', '3069', 'a', '7539', '8227']
Output (English): 9357a96037481y7896s7374PVA1972