Task: Program Execution
Input (English): 4, 16, ['6707', '5411', '7259', '2291', '8475', '7309', 'L', 'U', '5189', '6947', '991', 'c', 'T', 'S', '7987', 'h', 'K', 'Q']
Output (English): 229184757309LU51896947991cTS7987h