D2311231323331322331313232233132322331311331311313233313231313231323222321   >>    D231123132333132233131323223313232233131133131131323331323131323132322232   <<    D2311231323331322331313232233132322331311331311313233313231313231323222323   >>      D2311231323331322331313232233132322331311331311313233313231313231323222322   >>