Task: Program Execution
Input (English): 15, 20, ['1221', 'n', 'o', '3713', '6741', 'f', 'X', 'H', 'O', 'w', '9585', 'L', '8711', '6259', 'O', 'B', 'd', 'i', 'G', 'j', '3903']
Output (English): jGidBO