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

namespace No10_3{
    public class Program{
        public static void Main(string[] args){
            var n = Read(Convert.ToInt32);
            var total = Read(Convert.ToInt32);
            var an = ReadList(Convert.ToInt32);
            var dpAry = new string[n + 1, total + 1];

            if(an[0] * an[1] <= total)
                dpAry[1, an[0] * an[1]] = "*";
            if(an[0] + an[1] <= total)
                dpAry[1, an[0] + an[1]] = "+";

            for(var i = 2; i < n; i++){
                for(var j = 1; j <= total; j++){
                    if(dpAry[i - 1, j] != null){
                        if(j * an[i] <= total){
                            if(dpAry[i, j * an[i]] == null ||
                               string.CompareOrdinal(dpAry[i, j * an[i]], dpAry[i - 1, j] + "*") < 0)
                                dpAry[i, j * an[i]] = dpAry[i - 1, j] + "*";
                        }
                        if(j + an[i] <= total){
                            if(dpAry[i, j + an[i]] == null ||
                               string.CompareOrdinal(dpAry[i, j + an[i]], dpAry[i - 1, j] + "+") < 0)
                                dpAry[i, j + an[i]] = dpAry[i - 1, j] + "+";
                        }
                    }
                }
            }

            Console.WriteLine(dpAry[n - 1, total]);
        }

        public static TOutput Read<TOutput>(Converter<string, TOutput> converter){
            return converter(Console.ReadLine());
        }

        public static List<TOutput> ReadList<TOutput>(Converter<string, TOutput> converter, char c = ' '){
            return Console.ReadLine()?.Split(c).ToList().ConvertAll(converter);
        }
    }
}