D2311233132233131323132333131313233313132333132333133112331323222211   >>    D231123313223313132313233313131323331313233313233313311233132322221   <<    D2311233132233131323132333131313233313132333132333133112331323222213   >>      D2311233132233131323132333131313233313132333132333133112331323222212   >>