D1323112331313331313223313231213231323331323331322331313232212131   >>    D132311233131333131322331323121323132333132333132233131323221213   <<    D1323112331313331313223313231213231323331323331322331313232212133   >>      D1323112331313331313223313231213231323331323331322331313232212132   >>