#!/usr/bin/ python3.8
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

N, T, *A = map(int, read().split())
dp = [set() for _ in range(N + 1)]
dp[N].add(T)
for n in range(N, 0, -1):
    x = A[n - 1]
    for y in dp[n]:
        if 0 <= y - x:
            dp[n - 1].add(y - x)
        if y % x == 0:
            dp[n - 1].add(y // x)

assert 0 in dp[0]
answer = []
x = 0
for n in range(1, N + 1):
    y = A[n - 1]
    if x + y in dp[n]:
        answer.append('+')
        x += y
    else:
        answer.append('*')
        x *= y
print(''.join(answer[1:]))