D12121323331322331313232223132313231323133313223313123123231111   >>    D1212132333132233131323222313231323132313331322331312312323111   <<    D12121323331322331313232223132313231323133313223313123123231113   >>      D12121323331322331313232223132313231323133313223313123123231112   >>