import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] first = br.readLine().split(" ", 3);
        int[] lengths = new int[3];
        for (int i = 0; i < 3; i++) {
            lengths[i] = Integer.parseInt(first[i]);
        }
        int[] total = new int[3];
        total[0] = (lengths[0] + lengths[1]) * 2;
        total[1] = (lengths[1] + lengths[2]) * 2;
        total[2] = (lengths[2] + lengths[0]) * 2;
        Arrays.sort(total);
        String[] second = br.readLine().split(" ", 3);
        int[] colors = new int[3];
        for (int i = 0; i < 3; i++) {
            colors[i] = Integer.parseInt(second[i]);
        }
        Arrays.sort(colors);
        int ans = colors[0] * total[2] + colors[1] * total[1] + colors[2] * total[0];
        System.out.println(ans);
    }

}