D1313331322132333132333131311331323331323132233132333131313232231   >>    D131333132213233313233313131133132333132313223313233313131323223   <<    D1313331322132333132333131311331323331323132233132333131313232233   >>      D1313331322132333132333131311331323331323132233132333131313232232   >>