#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int N,S; cin >> N >> S;
    vector<int> A(N);
    for(auto &a : A) cin >> a;
    long long inf = 1e18;
    vector<long long> dp(S+1,inf);
    dp.at(A.at(0)) = 0;

    for(int i=0; i<N-1; i++){
        int a = A.at(i+1);
        vector<long long> next(S+1,inf);
        for(int k=1; k<=S; k++){
            if(dp.at(k) == inf) continue;
            if(k+a <= S) next.at(k+a) = min(next.at(k+a),dp.at(k)*2);
            if(k*a <= S) next.at(k*a) = min(next.at(k*a),dp.at(k)*2+1);
        }
        swap(dp,next);
    }
    
    long long num = dp.at(S);
    string answer = "";
    for(int i=0; i<N-1; i++){
        if(num%2) answer += '*';
        else answer += '+';
        num /= 2;
    }
    reverse(answer.begin(),answer.end());
    cout << answer << endl;
}