A.2*a*b/c/d B.a*b/c/d*2 C.a/c/d*b*2 D.2*a*b/c*d
A.x=y*5=x+z B.int(15.8%5) C.x=y+z*5,++y D.x=25%5.0
A.x=y=5 B.x=n%2.5 C.x+n=i D.x=5=4+1