import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int[] base = new int[3];
        for (int i = 0; i < 3; i++) {
            base[i] = sc.nextInt();
        }
        int[] lengths = new int[3];
        for (int i = 0; i < 3; i++) {
            lengths[i] = base[i] + base[(i + 1) % 3];
            lengths[i] *= 2;
        }
        int[] rgb = new int[3];
        for (int i = 0; i < 3; i++) {
            rgb[i] = sc.nextInt();
        }
        int[][] perm = new int[][]{{0, 1, 2}, {0, 2, 1}, {1, 0, 2}, {1, 2, 0}, {2, 0, 1}, {2, 1, 0}};
        int min = Integer.MAX_VALUE;
        for (int[] order : perm) {
            int sum = 0;
            for (int i = 0; i < 3; i++) {
                sum += lengths[i] * rgb[order[i]];
            }
            min = Math.min(min, sum);
        }
        System.out.println(min);
    }
}