D1212132333132233131323222313231323132313331322331311331323233111   >>    D121213233313223313132322231323132313231333132233131133132323311   <<    D1212132333132233131323222313231323132313331322331311331323233113   >>      D1212132333132233131323222313231323132313331322331311331323233112   >>