Problem:
Score : 300 points

Problem Statement

"Pizza At", a fast food chain, offers three kinds of pizza: "A-pizza", "B-pizza" and "AB-pizza". A-pizza and B-pizza are completely different pizzas, and AB-pizza is one half of A-pizza and one half of B-pizza combined together. The prices of one A-pizza, B-pizza and AB-pizza are A yen, B yen and C yen (yen is the currency of Japan), respectively.

Nakahashi needs to prepare X A-pizzas and Y B-pizzas for a party tonight. He can only obtain these pizzas by directly buying A-pizzas and B-pizzas, or buying two AB-pizzas and then rearrange them into one A-pizza and one B-pizza. At least how much money does he need for this? It is fine to have more pizzas than necessary by rearranging pizzas.

Constraints

1 ≤ A, B, C ≤ 5000

1 ≤ X, Y ≤ 10^5

All values in input are integers.

Input

Input is given from Standard Input in the following format:

A B C X Y

Output

Print the minimum amount of money required to prepare X A-pizzas and Y B-pizzas.

Sample Input 1

1500 2000 1600 3 2

Sample Output 1

7900

It is optimal to buy four AB-pizzas and rearrange them into two A-pizzas and two B-pizzas, then buy additional one A-pizza.

Sample Input 2

1500 2000 1900 3 2

Sample Output 2

8500

It is optimal to directly buy three A-pizzas and two B-pizzas.

Sample Input 3

1500 2000 500 90000 100000

Sample Output 3

100000000

It is optimal to buy 200000 AB-pizzas and rearrange them into 100000 A-pizzas and 100000 B-pizzas. We will have 10000 more A-pizzas than necessary, but that is fine.

Solution in Python (3.4.3) (judge verdict: Accepted)

[a,b,c,x,y]=[int(i) for i in input().split()]

ansa=0
ansb=0
ansc=0

f=0
ff=0

if c*2 < a+b:
    #print("c安い")
    ansc=min(x,y)
    f=1
else:
    #print("c高い")
    ansa=x
    ansb=y

if f:
    #print(ansa, ansb, ansc)
    #print(c*2, a, x-ansc, b,  y-ansc, ansc)
    if c*2<a and x-ansc > 0:
        ansc+=x-ansc
        ff=1
        #print("aa")
    if c*2<b and y-ansc >0:
        ansc+=y-ansc
        ff=1
        #print("bb")
    if ff==0:
        ansa+=x-ansc
        ansb+=y-ansc
    

#print(ansa, ansb, ansc)
print(a*ansa + b*ansb + c*ansc*2)