#include <bits/stdc++.h>
using namespace std;
map<int,string> dp[50];
int main(){
	int n,t;	cin>>n>>t;
	vector<int> a(n);
	for(int i=0;i<n;i++)	cin>>a[i];
	dp[0][a[0]]='\0';
	for(int i=1;i<n;i++){
		for(auto it=dp[i-1].begin();it!=dp[i-1].end();it++){
			int num=it->first;
			string s=it->second;
			if(num+a[i]<=t){
				auto nxt=dp[i].find(num+a[i]);
				if(nxt==dp[i].end())	dp[i][num+a[i]]=s+"+";
				else if(nxt->second<s+'+')	dp[i][num+a[i]]=s+'+';
			}
			if(num*a[i]<=t){
				auto nxt=dp[i].find(num*a[i]);
				if(nxt==dp[i].end())	dp[i][num*a[i]]=s+'*';
				else if(nxt->second<s+'*')	dp[i][num*a[i]]=s+'*';
			}
		}
	}
	cout<<dp[n-1][t]<<endl;
	return 0;
}