A, B, C, X, Y=map(int, input().split())
if (A+B)>2*c:
  ans=2*C*min(X, Y)
  if X>Y:
    if A>2*C:
      ans+=2*C*(X-Y)
    else:
      ans+=A*(X-Y)
  else:
    if B>2*C:
      ans+=2*C*(Y-X)
    else:
      ans+=B*(Y-X)
else:
  ans=A*X+B*Y

print(ans)