D1212132333132233131323222313231323221323132322331311331323121111   >>    D121213233313223313132322231323132322132313232233131133132312111   <<    D1212132333132233131323222313231323221323132322331311331323121113   >>      D1212132333132233131323222313231323221323132322331311331323121112   >>