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

#define rep(i,n) repi(i,0,n)
#define repi(i,a,b) for(int i=int(a);i<int(b);++i)
#define long int64_t
#define ulong uint64_t

const int N = 50;
int n, total, a[N];

void input()
{
    cin >> n >> total;
    rep(i, n) cin >> a[i];
}

bool dfs(int i, int cur)
{
    if (i == n) return cur == total;
    return dfs(i + 1, cur + a[i]) or dfs(i + 1, cur * a[i]);
}

void solve()
{
    string ans;
    int cur = a[0];
    repi(i, 1, n) {
        if (dfs(i + 1, cur + a[i])) {
            ans.push_back('+'), cur += a[i];
        } else {
            ans.push_back('*'), cur *= a[i];
        }
    }
    cout << ans << endl;
}

int main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(false);

    input();
    solve();
}