using System;
using System.Collections.Generic;
using System.Linq;

namespace matrixretakeexamadvanced
{
    class Program
    {
        static void Main(string[] args)
        {
            Stack<int> hats = new Stack<int>(Console.ReadLine().Split(' ', StringSplitOptions.RemoveEmptyEntries).Select(int.Parse));
            Queue<int> scarf = new Queue<int>(Console.ReadLine().Split(' ', StringSplitOptions.RemoveEmptyEntries).Select(int.Parse));

            List<int> sets = new List<int>();

            while (hats.Count != 0 && scarf.Count != 0)
            {
                int currHat = hats.Peek();
                int currScarf = scarf.Peek();

                if(currHat > currScarf)
                {
                    sets.Add(hats.Pop() + scarf.Dequeue());
                }
                else if(currScarf > currHat)
                {
                    hats.Pop();

                    continue;
                }
                else if(currHat == currScarf)
                {
                    scarf.Dequeue();
                    hats.Pop();
                    currHat += 1;
                    hats.Push(currHat);
                }
            }

            int biggerSet = sets.Max();

            Console.WriteLine($"The most expensive set is: {biggerSet}");


            Console.WriteLine(string.Join(" ", sets));


        }
    }
}