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 C (GCC 5.4.1) (judge verdict: Runtime Error)

#include<stdio.h>
void main()
{
	int A, B, C, X, Y,sum;
	
	while (1)
	{scanf("%d%d%d%d%d", &A, &B, &C, &X, &Y);
		if (A >= 1 && B >= 1 && C >= 1 && A <= 5000 && B <= 5000 && C <= 5000 && X >= 1 && Y >= 1 && X <= 1e5 && Y < 1e5)
			break;
	}

	if (X >= Y)
	{
		if ((A*X + B*Y) >= (2 * Y*C + (X - Y)*A))
			sum = (2 * Y*C + (X - Y)*A);
		else
			sum = A*X + B*Y;
	}
	else
	{
		if ((A*X + B*Y) >= (2 * Y*C + B*(Y - X)))
			sum = (2 * Y*C + B*(Y - X));
		else
			sum = A*X + B*Y;
	}
	printf("%d\n", sum);
	

}