import java.util.*;
 

public class Main {
	static int N;
	static int T;
	static int[] a;
	static void dfs(int now,int sum,ArrayList<Character> result ){
		if(now==N-1){
			if(sum==T){
				for(char g:result){
					System.out.print(g);
				}
				System.exit(0);
			}
			return;
		}
		if(sum>=T) return;
		result.add('+');
		dfs(now+1,sum+a[now+1],result);
		result.remove(result.size()-1);
		result.add('*');
		dfs(now+1,sum*a[now+1],result);
		result.remove(result.size()-1);
		
	}
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		 N = sc.nextInt();
		 T = sc.nextInt();
		 a = new int[N];
		for(int i=0;i<N;i++){
			a[i] = sc.nextInt();
		}
		dfs(0,a[0],new ArrayList<Character>());
		
	}
}