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

class Magatro
{
    static int N;
    static int Total;
    static int[] A;
    const int MAX = 100000;
    static void Main()
    {
        Read();
        string[,] ans = new string[N, MAX+1];
        ans[1, A[0] * A[1]] = "*";
        ans[1, A[0] + A[1]] = "+";
        

        for (int j = 2; j < N; j++)
        {
            for (int i = 0; i <= MAX; i++)
            {
                if (ans[j-1, i] != null)
                {
                    if (i * A[j] <= MAX)
                    {
                        ans[j, i * A[j]] = Min(ans[j - 1, i] + "*",ans[j,i*A[j]]);
                    }
                    if (i + A[j] <= MAX)
                    {
                        ans[j, i + A[j]] =Min( ans[j - 1, i] + "+", ans[j, i + A[j]]);
                    }
                }  
            }
        }
        Console.WriteLine(ans[N - 1, Total]);
    }
   static void Read()
    {
        N = int.Parse(Console.ReadLine());
        Total = int.Parse(Console.ReadLine());
        A = Console.ReadLine().Split(' ').Select(s => int.Parse(s)).ToArray();
    }
    static string Min(string a,string b)
    {
        if (a == null)
        {
            return b;
        }
        if (b == null)
        {
            return a;
        }
        for(int i = 0; i < Math.Min(a.Length, b.Length); i++)
        {
            if (a[i] != b[i])
            {
                if (a[i] == '+')
                {
                    return a;
                }
                else
                {
                    return b;
                }
            }
        }
        return "Dummy";
    }
}