D2311231323331322331313232233132322331311331311313233313231312111   >>    D231123132333132233131323223313232233131133131131323331323131211   <<    D2311231323331322331313232233132322331311331311313233313231312113   >>      D2311231323331322331313232233132322331311331311313233313231312112   >>