import java.util.Scanner;

public class Anumbr {

    /**
     * @param args the command line arguments
     */
    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 price1 ;
		int price2 ;
		if (X > Y) {
			price1 = (C * 2 * Y) + (A * (X - Y));
			price2 = C * 2 * X;
		} else {
			price1 = (C * 2 * X) + (B * (Y - X));
			price2 = C * 2 * Y;
		}
		int price3 = A * X + B * Y;
		int ans = Math.min(price1, price2);
		ans = Math.min(ans, price3);
		System.out.println(ans);
	}
    
}