BBI: (Ma (Guan, m 1)+ Ma (Guan,)+Ma (Guan,)+Ma (Guan,) /4, COLORRED.
PARTLINE(BBI & gt; REF(BBI, 1),BBI),COLORRED
PARTLINE(BBI=REF(BBI, 1),BBI),COLORRED
PARTLINE(BBI & lt; REF(BBI, 1),BBI),COLORGREEN
(Tested by Master Boyi)