D2311231323331322331313232233132322331311221123231323131323131111   >>    D231123132333132233131323223313232233131122112323132313132313111   <<    D2311231323331322331313232233132322331311221123231323131323131113   >>      D2311231323331322331313232233132322331311221123231323131323131112   >>