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: Accepted)

#include<stdio.h>
int min(int x,int y){
  if(x<y){
    return x;
  }else{
    return y;
  }
}
int max(int x,int y){
  if(x<y){
    return y;
  }else{
    return x;
  }
}

int main(){
  int a = 0;
  int b = 0;
  int c = 0;
  int x = 0;
  int y = 0;
  long sum = 0;
  scanf("%d %d %d %d %d",&a,&b,&c,&x,&y);
  //printf("%d %d %d %d %d ",a,b,c,x,y);
  if(a+b<2*c){
    sum = a*x+b*y;
  }else{
    if(a > 2*c && b > 2*c){
      sum = 2*c*max(x,y);
    }else if(a > 2*c){
      if(x<y){
        sum = (2*c)*x+b*(y-x);
      }else{
        sum = 2*c*x;
      }
    }else if(b>2*c){
      if(x>y){
        sum = (2*c)*y + a*(x-y);
      }else{
        sum = 2*c*y;
      }
    }else{
      if(x>y){
        sum = (2*c)*y + a*(x-y);
      }else{
        sum = (2*c)*x + b*(y-x);
      }
    }
  }
  printf("%ld",sum);
  return 0;
}