D2311231323331322331313232233132322331311221123231323132313112331121   >>    D231123132333132233131323223313232233131122112323132313231311233112   <<    D2311231323331322331313232233132322331311221123231323132313112331123   >>      D2311231323331322331313232233132322331311221123231323132313112331122   >>