D1212132333132233131323222313231323133313231322331313233313232231111   >>    D121213233313223313132322231323132313331323132233131323331323223111   <<    D1212132333132233131323222313231323133313231322331313233313232231113   >>      D1212132333132233131323222313231323133313231322331313233313232231112   >>