D1212132333131322331323331313131323132322331323231323231323132311   >>    D121213233313132233132333131313132313232233132323132323132313231   <<    D1212132333131322331323331313131323132322331323231323231323132313   >>      D1212132333131322331323331313131323132322331323231323231323132312   >>