D1212132333132233131323222313231323132313331322331323132323213111   >>    D121213233313223313132322231323132313231333132233132313232321311   <<    D1212132333132233131323222313231323132313331322331323132323213113   >>      D1212132333132233131323222313231323132313331322331323132323213112   >>