import sys

sys.setrecursionlimit(10**6)

N = int(input())
Total = int(input())
A_list = list(map(int, input().split()))

answer_list = []


def solve(i, j, operator):

    if i == N:
        if j == Total:
            answer_list.append(operator.copy())
        return

    if A_list[i]+j <= Total:
        temp = operator.copy()
        temp.append("+")
        solve(i+1, j+A_list[i], temp)

    if A_list[i]*j <= Total:
        temp = operator.copy()
        temp.append("*")
        solve(i+1, j * A_list[i], temp)


solve(1, A_list[0], [])
[print(i, end="") for i in sorted(answer_list)[-1]]
print("")