D1212121212131323331312323132322331313232233132313223313233313231321333131   >>    D121212121213132333131232313232233131323223313231322331323331323132133313   <<    D1212121212131323331312323132322331313232233132313223313233313231321333133   >>      D1212121212131323331312323132322331313232233132313223313233313231321333132   >>