D1212132333132233131323222313231323133313231322331323123231323132221   >>    D121213233313223313132322231323132313331323132233132312323132313222   <<    D1212132333132233131323222313231323133313231322331323123231323132223   >>      D1212132333132233131323222313231323133313231322331323123231323132222   >>