D2311231323331322331313232233132322331322331323132333132313211311   >>    D231123132333132233131323223313232233132233132313233313231321131   <<    D2311231323331322331313232233132322331322331323132333132313211313   >>      D2311231323331322331313232233132322331322331323132333132313211312   >>