from collections import defaultdict
N = int(raw_input())
T = int(raw_input())
a = map(int, raw_input().split())
dp = set([a[0]])
s2e = defaultdict(lambda :"1"*51)
s2e[a[0]] = ""

for ai in a[1:]:
    ndp = set([])
    for s in dp:
        if s+ai <= T:
            ndp.add(s+ai)
            s2e[s+ai] = min(s2e[s+ai], s2e[s]+"0")
        if s*ai <= T:
            ndp.add(s*ai)
            s2e[s*ai] = min(s2e[s*ai], s2e[s]+"1")
    dp = ndp
    
print s2e[T].replace("1","*").replace("0","+")