Task: Program Execution
Input (English): 18, 26, ['6923', 'l', 'O', '4975', 't', 'N', '1559', '8837', '9853', '3067', '1679', 'N', '293', 'b', '2649', '347', 'r', 'D', '3875', '6539', 'a', '4487', 'M', 'g', 'M', 'u', 'n', '8247']
Output (English): D38756539a4487MgMu