import sys

sys.setrecursionlimit(10**6)

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

dp_list = []

S = ""


def solve(i, j):
    global S
    if j > Total:
        return

    if (i, j) in dp_list:
        return
    if i == N:
        if j == Total:
            print(S)
            exit()
        return

    dp_list.append((i, j))
    S += "+"
    solve(i+1, j+A_list[i])
    S = S[:-1]
    S += "*"
    solve(i+1, j * A_list[i])
    S = S[:-1]
    return


solve(1, A_list[0])