import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        int count = 0;
        if(A+B>2*C){
            if(X>=Y){
                if(A>=2*C){
                    count = 2*C*X;
                }else{
                    count = 2*C*Y + A*(X-Y);
                }
            }else{
                if(B>=2*C){
                    count = 2*C*Y;
                }else{
                    count = 2*C*X + A*(Y-X);
                }
            }
        }else{
            count = A*X+B*Y;
        }
        
          System.out.println(count);
        }
    }
