Task: Program Execution
Input (English): 14, 18, ['3649', 'm', '4381', 'B', 'k', 'Y', '8439', 'i', 'D', '8949', '21', 'O', 'u', 'O', 'E', 'W', 'L', '4905', '3877']
Output (English): 4905LWEO