Task: Program Execution
Input (English): 3, 18, ['6757', 'B', 'l', 'p', '8267', 'Z', 'J', '8349', '5225', 'y', 'a', 'B', 'W', 'P', 'l', 'm', '3945', 'B', '1435', 'u', '4599', 'C', 'N', 'v', 'd', 'l', 'U']
Output (English): B3945mlPWBay52258349JZ8267pl