// yukicoder: No.10 ＋か×か
// 2019.4.8 bal4u
// 全検索

#include <stdio.h>

#if 0
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)
#else
#define gc() getchar()
#define pc(c) putchar(c)
#endif
int in()
{
	int n = 0, c = gc();
	do n = 10 * n + (c & 0xf), c = gc(); while (c >= '0');
	return n;
}

void outs(char *s) { while (*s) pc(*s++); }

int a[55];
char ans[55];
int N, total;

int calc(int id, int val)
{
	int res;

	if (id >= N) return (val == total);

	res = val + a[id], ans[id] = '+';
	if (calc(id + 1, res)) return 1;

	res = val * a[id], ans[id] = '*';
	if (calc(id + 1, res)) return 1;
	return 0;
}

int main()
{
	int i;
	N = in(), total = in();
	for (i = 0; i < N; i++) a[i] = in();
	calc(1, a[0]);
	outs(ans + 1), pc('\n');
	return 0;
}