import java.util.Scanner;

public class Main {
    public static void main(String args[]) {
        Scanner scanner = new Scanner(System.in);
        int A, B, C, X, Y;
        A = scanner.nextInt();
        B = scanner.nextInt();
        C = scanner.nextInt();
        X = scanner.nextInt();
        Y = scanner.nextInt();
        int ans = (int) 1e9;//1e9=10^9
        for (int i = 0; i < 2 * (X + Y) + 1; i++) {
            int ABpizza = i;
            int Apizza = Math.max(X - i / 2, 0);
            int Bpizza = Math.max(Y - i / 2, 0);
            ans = Math.min(ans, Apizza * A + Bpizza * B + ABpizza * C);
        }
        System.out.println(ans);
    }
}