Task: Program Execution
Input (English): 5, 20, ['5279', 'K', '4885', '9651', '7473', '8017', 'Z', 'a', 'y', 'a', '6787', '1663', 'M', '7957', '6465', '8815', 'e', 'U', 'E', 'r', 'U', 'F', 'l', '7859', 'K', '9817', 'e']
Output (English): rEUe518856467597M36617876ayaZ71083747