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