from collections import*
n=int(input())
t=int(input())
a=map(int,input().split())
d=defaultdict(lambda:" "*n)
d[next(a)]=""
for i in a:
    e=defaultdict(lambda:" "*n)
    for j in d:
        if(p:=j+i)<=t:e[p]=max(e[p],d[j]+"+")
        if(p:=j*i)<=t:e[p]=max(e[p],d[j]+"*")
    del d;d=e;del e
print(d[t])