D1212132333132233131323222313231323132333132323223313231323131231311   >>    D121213233313223313132322231323132313233313232322331323132313123131   <<    D1212132333132233131323222313231323132333132323223313231323131231313   >>      D1212132333132233131323222313231323132333132323223313231323131231312   >>