D12121323331322331313232223132313231323133313223313231313231333132212111   >>    D1212132333132233131323222313231323132313331322331323131323133313221211   <<    D12121323331322331313232223132313231323133313223313231313231333132212113   >>      D12121323331322331313232223132313231323133313223313231313231333132212112   >>