Task: Program Execution
Input (English): 18, 27, ['n', 'I', 'z', '9397', '7789', 't', '4803', 'v', 'm', '589', 'B', '3653', '7979', 'z', '9323', 'c', 'L', '5189', 'b', 'd', '6183', 'a', '2311', 'B', 'U', '8407', '1451']
Output (English): 5189bd6183a2311BU84071451