import sys

sys.setrecursionlimit(10**6)

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


def solve(i, j, operator):
    if i == N:
        if j == Total:
            print(operator)
            exit()
        return

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

    if A_list[i]*j <= Total:
        solve(i+1, j * A_list[i], operator+"*")
    return


solve(1, A_list[0], "")