D1212132333132233131323222313231323221323132322331311331323132323131   >>    D121213233313223313132322231323132322132313232233131133132313232313   <<    D1212132333132233131323222313231323221323132322331311331323132323133   >>      D1212132333132233131323222313231323221323132322331311331323132323132   >>