#include <stdlib.h>
#include <iostream>
#include <string>
using namespace std;
#define REP(i, n)           for(int(i)=0;(i)<(n);++(i))

int N, total, A[51];
bool memo[51][100100];
string s;

void dfs(int i, int num){
    if(num > total) return;
    if(memo[i][num]) return;
    if(i == N){
        if(num == total){ cout << s << endl; exit(0); }
        return;
    }
    s.push_back('+'); dfs(i+1, num + A[i]); s.pop_back();
    s.push_back('*'); dfs(i+1, num * A[i]); s.pop_back();
    memo[i][num] = true;
}

int main(){
    cin >> N >> total;
    REP(i,N) cin >> A[i];
    dfs(1,A[0]);
    return 0;
}