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

typedef long long Int;
#define REP(i,n) for(int (i)=0;(i)<(int)(n);++(i))

int N;
int total;
int A[55];
char ops[55];

bool vis[55][100010];

void dfs(int d, int val) {
	if (d == N) {
		if (val == total) {
			throw 1;
		}
		return;
	}
	if (val > total) return;
	if (vis[d][val]) return;
	vis[d][val] = true;
	ops[d] = '+';
	dfs(d + 1, val + A[d]);
	ops[d] = '*';
	dfs(d + 1, val * A[d]);
}

int main() {
	cin >> N >> total;
	REP(i, N) cin >> A[i];
	try { dfs(1, A[0]); } catch (int e) {}
	for (int i = 1; i < N; i++) cout << ops[i]; cout << endl;
}