from collections.abc import Iterable


def accum_ldp(xs: Iterable, f, op, e, size: int, init: dict, *, is_reset=True):
    dp = [e] * size
    for k, v in init.items():
        dp[k] = v

    for x in xs:
        pp = [e] * size if is_reset else dp.copy()
        dp, pp = pp, dp
        for i in range(size):
            for p, v in f(i, pp[i], x):
                if not (0 <= p < size): continue
                dp[p] = op(dp[p], v)

    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}
size = 100_001
dp = accum_ldp(range(1, N), f, op, INF, size, init)

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

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