D1212132333132233131113231313231333131323223313232223132313132311331   >>    D121213233313223313111323131323133313132322331323222313231313231133   <<    D1212132333132233131113231313231333131323223313232223132313132311333   >>      D1212132333132233131113231313231333131323223313232223132313132311332   >>