#include <stdio.h>
#include <string.h>

#define MOD	(1050000)
typedef struct{
	int sum;
	int sympos;
	char sym[55];
} QUEUE;

QUEUE queue[MOD];

int main(void){
	int i,n,total;
	int a[55];
	int value[55];
	
	int start, goal;
	start = goal = 0;
	
	scanf("%d", &n);
	scanf("%d", &total);
	
	for(i=0;i<55;i++){a[i] = 0; value[i] = 0;}
	for(i=0;i<n;i++){
		scanf("%d", &a[i]);
	}
	a[i] = total*2;
	
	queue[start].sum = a[0];
	queue[start].sympos = 0;
	queue[start].sym[0] = '\0';
	
	start = (start+1) % MOD;
	
	while(start != goal){
		int tsum = queue[goal].sum;
		int tmpTsum;
		int tSympos = queue[goal].sympos;
		char tSym[52];
		strcpy(tSym, queue[goal].sym);
		goal = (goal+1) % MOD;
		
		if(value[tSympos] == tsum){
			continue;
		}
		value[tSympos] = tsum;

//			printf("%d\n", goal);
//			printf("%d %d %s\n", tsum, tSympos, tSym);
		if(tSympos == (n-1) ){
			if(total == tsum){
				printf("%s\n", tSym);
				break;
			}
		}
		
		tmpTsum = tsum + a[tSympos+1];
		if(tmpTsum <= total){
			strcpy(queue[start].sym, tSym);
			queue[start].sum = tmpTsum;
			queue[start].sympos = tSympos+1;
			queue[start].sym[tSympos+0] = '+';
			queue[start].sym[tSympos+1] = '\0';
			
			start = (start+1) % MOD;
		}
		
		tmpTsum = tsum * a[tSympos+1];
		if(tmpTsum <= total){
			strcpy(queue[start].sym, tSym);
			queue[start].sum = tmpTsum;
			queue[start].sympos = tSympos+1;
			queue[start].sym[tSympos+0] = '*';
			queue[start].sym[tSympos+1] = '\0';
			
			start = (start+1) % MOD;
		}
	}
	
	return 0;
}