using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ForYukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] a = Console.ReadLine().Split();
            int w = int.Parse(a[0]);
            int h = int.Parse(a[1]);
            int d = int.Parse(a[2]);

            int[] box = { (h + d) * 2, (w + h) * 2, (w + d) * 2 };
            var C = ConvertStringArrayToIntArray(Console.ReadLine().Split());

            Array.Sort(box);
            Array.Sort(C);

            int sum = box[2] * C[0] + box[1] * C[1] + box[0] * C[2];

            Console.WriteLine(sum);
        }

        static int[] ConvertStringArrayToIntArray(string[] array)
        {
            return Array.ConvertAll(array, str => int.Parse(str));
        }
    }
}