a,b,c,x,y = map(int, input().split())
mx = a if x >= y else b
if c * 2 <= (a+b):
  if c * 2 <= mx:
    print((min(x,y)+abs(x-y))*c*2)
  else:
    print(min(x,y)*c*2+ans(x-y)*mx)
else:
  print(a*x+b*y)