D2311231323331322331313232233132322331311221123231323132313123221   >>    D231123132333132233131323223313232233131122112323132313231312322   <<    D2311231323331322331313232233132322331311221123231323132313123223   >>      D2311231323331322331313232233132322331311221123231323132313123222   >>