using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;
using System.Text;

public class Program
{

    public void Proc()
    {
        int itemCount = int.Parse(Reader.ReadLine());
        this.Total = long.Parse(Reader.ReadLine());
        this.Items = Reader.ReadLine().Split(' ').Select(a => long.Parse(a)).ToArray();
        List<char> ans = GetAns(0, Items[0]);
        Console.WriteLine(string.Join(string.Empty, ans));
    }

    private long[] Items;

    private long Total;

    private List<char> GetAns(int idx, long subTotal) {
        if(subTotal>Total) {
            return null;
        }
        if(idx == Items.Length - 1) {
            if(subTotal == Total) {
                return new List<char>();
            } else {
                return null;
            }
        }
        List<char> ans = new List<char>();
        List<char> ret = GetAns(idx + 1, subTotal + Items[idx + 1]);
        if(ret != null) {
            ans.Add('+');
            ans.AddRange(ret);
            return ans;
        }
        ret = GetAns(idx + 1, subTotal * Items[idx + 1]);
		if (ret != null)
		{
			ans.Add('*');
			ans.AddRange(ret);
			return ans;
		}
        return null;

	}

    public class Reader
	{
		private static StringReader sr;
		public static bool IsDebug = false;
		public static string ReadLine()
		{
			if (IsDebug)
			{
				if (sr == null)
				{
					sr = new StringReader(InputText.Trim());
				}
				return sr.ReadLine();
			}
			else
			{
				return Console.ReadLine();
			}
		}
		private static string InputText = @"



4
31
1 2 10 1





";
	}

	public static void Main(string[] args)
	{
#if DEBUG
		Reader.IsDebug = true;
#endif
		Program prg = new Program();
		prg.Proc();
	}
}