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();

		if (a + b < c * 2) {
			System.out.println(a * x + b * y);
		} else {
			int ab = Math.min(x, y);
			System.out.println(Math.min((x - ab) * a + (y - ab) * b + c * ab * 2, c * Math.max(x, y) * 2));
		}

		sc.close();
	}
}