D1212132333132233131323222313231323331323131333132233132313111111   >>    D121213233313223313132322231323132333132313133313223313231311111   <<    D1212132333132233131323222313231323331323131333132233132313111113   >>      D1212132333132233131323222313231323331323131333132233132313111112   >>