a,b,c,x,y = map(int,input().split())
ans=a*x+b*y
if x>y:
    e = c*2*y
    f = a*(x-y)
    ans=min(ans,e+y)
    g= 2*c*x
    ans=min(ans,g)
else:
    e = c*2*x
    f = b*(y-x)
    ans = min(ans,e+f)
    g = 2*c*y
    ans = min(ans,g)

print(ans)
