D1212121212131323331312323132322331313232233132313223313132313232211233131   >>    D121212121213132333131232313232233131323223313231322331313231323221123313   <<    D1212121212131323331312323132322331313232233132313223313132313232211233133   >>      D1212121212131323331312323132322331313232233132313223313132313232211233132   >>