D2311231323331322331313232233132313231333131322331323132313111111   >>    D231123132333132233131323223313231323133313132233132313231311111   <<    D2311231323331322331313232233132313231333131322331323132313111113   >>      D2311231323331322331313232233132313231333131322331323132313111112   >>