using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
 
public class YukiCoder
{
    private static int N;
    private static int Total;
    private static int[] A;
 
    private static string Anser = string.Empty;
 
    public static void Solve()
    {
        N = MyConsole.Int();
        Total = MyConsole.Int();
        A = MyConsole.IntSplit();
 
        // 演算の実行
        Math( "", A[0], 1 );
 
        MyConsole.wLine( Anser );
    }
 
    /// <summary>
    /// Total に達するまで＋と×の組み合わせを変えながら演算を行う。
    /// 組み合わせは辞書順の上から総当りの手法。
    /// </summary>
    /// <param name="Formula">計算式</param>
    /// <param name="Base">経過値</param>
    /// <param name="Index">位置情報</param>
    /// <returns>終わっている？[true：終わった false：まだまだ！] </returns>
    private static bool Math( string Formula, int Base, int Index )
    {
        if (Base == Total && Index == N)
        {
            Anser = Formula;
 
            return true;
        }
        else if (Base > Total || Index >= N)
        {
            return false;
        }
 
        return Math( Formula + "+", Base + A[Index], Index + 1 ) == true 
            ? true : Math( Formula + "*", Base * A[Index], Index + 1 );
    }
 
    public static void Main()
    {
        MyConsole.Read(); Solve(); MyConsole.Finish();
    }
}
 
public static class MyConsole
{
    private static List<string> ReadedLine = new List<string>();
    private static char[] buf = new char[1024];
    private static int i;
 
    public static void Read()
    {
        string sr = Console.In.ReadToEnd();
 
        ReadedLine = sr.Split( new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries ).ToList();
 
        Console.SetOut( new StreamWriter( Console.OpenStandardOutput() ) { AutoFlush = false } );
    }
 
    public static string String() { return ReadedLine[i++]; }
    public static string[] StringSplit() { return ReadedLine[i++].Split( new[] { ' '} ); }
 
    public static int Int() { return int.Parse( ReadedLine[i++] ); }
    public static int[] IntSplit()
    {
        string[] strs = StringSplit();
        int[] ret = new int[strs.Length];
        for (int i = 0 ; i < strs.Length ; i++)
        {
            ret[i] = int.Parse( strs[i] );
        }
 
        return ret;
    }
    public static long Long() { return long.Parse( ReadedLine[i++] ); }
    public static double Double() { return double.Parse( ReadedLine[i++] ); }
 
    public static void wLine( string output = null )
    {
        Console.WriteLine( output );
    }
 
    public static void Finish()
    {
        Console.Out.Flush();
    }
}