D1212132333131322331323331313132313331323331313233313231323223311   >>    D121213233313132233132333131313231333132333131323331323132322331   <<    D1212132333131322331323331313132313331323331313233313231323223313   >>      D1212132333131322331323331313132313331323331313233313231323223312   >>