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

namespace StuckNumbers_9
{
    class StuckNumbers_9
    {
        static void Main(string[] args)
        {
            string numInput = Console.ReadLine();
            List<int> numbers = numInput.Split().Select(int.Parse).ToList();
            bool isResult = false;

            foreach (int a in numbers)
            {
                foreach (int b in numbers)
                {
                    foreach (int c in numbers)
                    {
                        foreach (int d in numbers)
                        {
                            if (a != b && a != c && a != d && b != c && b != d && c != d)
                            {
                                string leftSide = "" + a + b;
                                string rightSide = "" + c + d;
                                if (leftSide.Equals(rightSide))
                                {
                                    isResult = true;
                                    Console.WriteLine("{0}|{1}=={2}|{3}", a, b, c, d);
                                }
                            }
                        }
                    }
                }
            }
            if (!isResult)
            {
                Console.WriteLine("No");
            }
        }
    }
}