D1212132333132233131323222313231323133313231322331323132333132322131   >>    D121213233313223313132322231323132313331323132233132313233313232213   <<    D1212132333132233131323222313231323133313231322331323132333132322133   >>      D1212132333132233131323222313231323133313231322331323132333132322132   >>