#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <utility>

using namespace std;


int main() {
	int n, total;
	bool dp[50][100001] = {};

	cin >> n;
	cin >> total;

	vector<int> a(n, 0);

	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	dp[0][a[0]] = true;
	for (int i = 1; i < n; i++) {
		for (int j = 0; j <= total; j++) {
			if (dp[i-1][j]) {
				if (j + a[i] <= total) {
					dp[i][j + a[i]] = true;
				}
				if (j * a[i] <= total) {
					dp[i][j * a[i]] = true;
				};
			}
		}
	}

	for (int i = 0; i < total; i++) {
		dp[n - 1][i] = false;
	}
	for (int i = n - 2; i >= 0; i--) {
		for (int j = 0; j <= total; j++) {
			if (dp[i][j]) {
				if (
					(j + a[i+1] <= total && dp[i+1][j + a[i+1]]) ||
					(j * a[i+1] <= total && dp[i+1][j * a[i+1]])
				) {
					// printf("ok %2d %6d\n", i, j);
					; // 処理なし
				} else {
					dp[i][j] = false;
				}
			}
		}
	}

	string ans(n - 1, '?');
	int calc = a[0];
	for (int i = 1 ; i < n; i++) {
		if (dp[i][calc + a[i]]) {
			calc += a[i];
			ans[i-1] = '+';
		} else {
			calc *= a[i];
			ans[i-1] = '*';
		}
	}

	cout << ans << endl;
	return 0;
}