Task: Program Execution
Input (English): 13, 21, ['6987', 'C', '3491', 'n', 'E', '1715', '3971', '4153', 'R', '6087', 'd', 'i', 'd', 'l', '7039', '3155', '4539', 'w', 'm', 'M', 'X', 'J', '9747', 'b', 'W', 'L', 'l']
Output (English): dl703931554539wmMX