#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

char*mmap();
#define RD(v) v=0;{int _c;while(_c=*rp++-48,_c>=0)v=v*10+_c;}

int n,t;
int a[50];
char v[51<<17];

char wbuf[50];
f(i,x){
	if(x>t) return;
	if(i==n){
		if(x==t){
			write(1,wbuf+1,n-1);
			_exit(0);
		}
		return;
	}
	if(v[i<<17|x]) return;
	v[i<<17|x]=1;
	wbuf[i]='+';
	f(i+1,x+a[i]);
	wbuf[i]='*';
	f(i+1,x*a[i]);
}

main(){
	char*rp=mmap(0l,1l<<28,1,2,0,0ll);
	RD(n);
	RD(t);
	for(int i=0;i<n;++i){
		int RD(ai);
		a[i]=ai;
	}
	f(1,a[0]);
}