D1212132333132233131323222313231323132313331322331323131323132333221   >>    D121213233313223313132322231323132313231333132233132313132313233322   <<    D1212132333132233131323222313231323132313331322331323131323132333223   >>      D1212132333132233131323222313231323132313331322331323131323132333222   >>