using System;
using System.Text;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using static System.Console;
using static System.Math;

namespace ABC079C
{
    public class Program
    {
        public static void Main(string[] args)
        {
            new Program().Solve(new ConsoleInput(Console.In, ' '));

            return;
        }

        public void Solve(ConsoleInput cin)
        {

            var ABCD = cin.ReadLine;
            int[] Num = new int[4];
            Num[0] = (int)(ABCD[0] - '0');
            Num[1] = (int)(ABCD[1] - '0');
            Num[2] = (int)(ABCD[2] - '0');
            Num[3] = (int)(ABCD[3] - '0');

            var dfs = new Dfs(Num);
            dfs.Proc(0, 0);
            var op = dfs.Ans();
            Console.WriteLine("{0}{1}{2}{3}{4}{5}{6}=7", Num[0], op[2], Num[1], op[1], Num[2], op[0], Num[3]);

        }
    }

    public class Dfs
    {
        private readonly int[] _Num;
        private string _op = "";
        public Dfs(int[] Num)
        {
            this._Num = Num;
        }
        public string Ans()
        {
            return this._op;
        }
        public bool Proc(int i, int sum)
        {
            if (i == 4) {
                return sum == 7;
            }
            if (this.Proc(i + 1, sum + this._Num[i])) {
                this._op += "+";
                return true;
            }
            if (this.Proc(i + 1, sum - this._Num[i])) {
                this._op += '-';
                return true;
            }
            return false;
        }
    }

    public static class Extensions
    {
        public static string Reverse(this string sourse)
        {
            char[] chrAry = sourse.ToCharArray();
            Array.Reverse(chrAry);
            return new string(chrAry);
        }
    }

    public class ConsoleInput
    {
        private readonly System.IO.TextReader _stream;
        private char _separator = ' ';
        private Queue<string> inputStream;
        public ConsoleInput(System.IO.TextReader stream, char separator = ' ')
        {
            this._separator = separator;
            this._stream = stream;
            inputStream = new Queue<string>();
        }
        public string Read
        {
            get
            {
                if (inputStream.Count != 0) return inputStream.Dequeue();
                string[] tmp = _stream.ReadLine().Split(_separator);
                for (int i = 0; i < tmp.Length; ++i)
                    inputStream.Enqueue(tmp[i]);
                return inputStream.Dequeue();
            }
        }
        public string ReadLine { get { return _stream.ReadLine(); } }
        public int ReadInt { get { return int.Parse(Read); } }
        public long ReadLong { get { return long.Parse(Read); } }
        public double ReadDouble { get { return double.Parse(Read); } }
        public string[] ReadStrArray(long N) { var ret = new string[N]; for (long i = 0; i < N; ++i) ret[i] = Read; return ret; }
        public int[] ReadIntArray(long N) { var ret = new int[N]; for (long i = 0; i < N; ++i) ret[i] = ReadInt; return ret; }
        public long[] ReadLongArray(long N) { var ret = new long[N]; for (long i = 0; i < N; ++i) ret[i] = ReadLong; return ret; }
    }
}


Measured memory_bytes: 13268