D23112331322331313231323331313132333131323331322331313311212231   >>    D2311233132233131323132333131313233313132333132233131331121223   <<    D23112331322331313231323331313132333131323331322331313311212233   >>      D23112331322331313231323331313132333131323331322331313311212232   >>