from collections.abc import Iterable


def accum_dp(xs: Iterable, f, op, e, init: dict, *, is_reset=True):
    dp = init.copy()
    for x in xs:
        pp = {} if is_reset else dp.copy()
        dp, pp = pp, dp
        for fm_key, fm_val in pp.items():
            for to_key, to_val in f(fm_key, fm_val, x):
                dp[to_key] = op(dp.get(to_key, e), to_val)

    return dp


INF = 1 << 62
N = int(input())
T = int(input())
A = list(map(int, input().split()))


def f(k, v, i):
    # key = 和
    # val = +/* の 2 進数
    if k + A[i] <= T:
        v_add = (v << 1) | 0
        yield k + A[i], v_add

    if k * A[i] <= T:
        v_mul = (v << 1) | 1
        yield k * A[i], v_mul


def op(a, b):
    return min(a, b)


init = {A[0]: 0}
dp = accum_dp(range(1, N), f, op, INF, init)

v = dp[T]
ans = []
for i in range(N-1):
    if v & (1 << i):
        ans.append('*')
    else:
        ans.append('+')

print(''.join(reversed(ans)))