#include <iostream>
using namespace std;

#define N 50

int n;
int ans;
int v[N];
char op[N-1];

int dfs(char o, int l, int t)
{
	t = o == '+' ? (t + v[l + 1]) : (t * v[l + 1]);
	op[l] = o;
	if ( t > ans ) {
		return -1;
	}
	if ( l == n - 2 ) {
		return t == ans ? 1 : -1;
	}
	int x = dfs('+', l + 1, t);
	if ( x != 1 ) {
		x = dfs('*', l + 1, t);
	}
	return x;
}

int main()
{
	cin >> n;
	cin >> ans;
	for ( int i = 0; i < n; i++ ) {
		cin >> v[i];
	}

	dfs('+', 0, v[0]) <= 0 && dfs('*', 0, v[0]);

	for ( int i = 0; i < n - 1; i++ ) {
		cout << op[i];
	}

	return 0;
}