//No.10 ＋か×か

//メモ
//  とりあえず素直に
//  TLEだったら計算量減らす

#include <iostream>
#include <bitset>
#include <cmath>
#define N_MAX 50

typedef long long LL;
using namespace std;

int main()
{
	const char* op = "+*";
	int N, T, A[N_MAX], res;
	LL p;
	bitset<64> b;

	cin >> N >> T;
	for (int i = 0; i < N; ++i)
		cin >> A[i];

	p = pow(2, N);

	//計算
	for (LL i = 0; i < p; ++i)
	{
		res = A[0];
		b = i;

		for (int j = 0; j < N - 1; ++j)
		{
			if (b[j])
				res *= A[j+1];
			else
				res += A[j+1];
			if (res > T)
				break;
		}

		if (res == T)
			break;
	}

	for (int i = 0; i < N - 1; ++i)
		cout << op[b[i]];
	cout << endl;

	return 0;
}