D1212132333132233131323222313231333131323223313123132313232223321   >>    D121213233313223313132322231323133313132322331312313231323222332   <<    D1212132333132233131323222313231333131323223313123132313232223323   >>      D1212132333132233131323222313231333131323223313123132313232223322   >>