A . #3:FUP[#1]:2.0,#4:FIX[#2]:-2.0
B . #3=FUP[#1]=2.0,#4=FIX[#2]=1.0
C . #3=FIX_#l]:l.0,#4:FUP[#2]=-1.0
D . #3=FIX[#1]=1.0,#4:FUP[#2]:-2.0