D33112221323133313133313132233131333132313223313231323123221221   >>    D3311222132313331313331313223313133313231322331323132312322122   <<    D33112221323133313133313132233131333132313223313231323123221223   >>      D33112221323133313133313132233131333132313223313231323123221222   >>