D1212132333131322331323331313131323132313331312323223313231322311   >>    D121213233313132233132333131313132313231333131232322331323132231   <<    D1212132333131322331323331313131323132313331312323223313231322313   >>      D1212132333131322331323331313131323132313331312323223313231322312   >>