import java.util.*;
import java.math.*;
import java.text.*;

public class Main {
    private static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) throws Exception {
        int l1 = sc.nextInt();
        int l2 = sc.nextInt();
        int l3 = sc.nextInt();
        int r = sc.nextInt();
        int b = sc.nextInt();
        int y = sc.nextInt();
        
        int ret = Integer.MAX_VALUE;
        
        ret = Math.min(ret, sum(l1, l2, l3, r, b, y));
        ret = Math.min(ret, sum(l1, l3, l2, r, b, y));
        ret = Math.min(ret, sum(l2, l1, l3, r, b, y));
        ret = Math.min(ret, sum(l2, l3, l1, r, b, y));
        ret = Math.min(ret, sum(l3, l1, l2, r, b, y));
        ret = Math.min(ret, sum(l3, l2, l1, r, b, y));
        
        System.out.println(ret);
    }
    
    public static int sum(int l1, int l2, int l3, int r, int b, int y) {
        return (l2+l3)*2*r + (l1+l2)*2*b + (l1+l3)*2*y;
    }
}