n=int(input())
T=int(input())
a=list(map(int,input().split()))
X=1<<60
q=[X]*(T+1)
q[a[0]]=0
for v in a[1:]:
  nq=[X]*(T+1)
  for i in range(T+1):
    if i+v<=T:
      nq[i+v]=min(nq[i+v],q[i]*2+0)
    if i*v<=T:
      nq[i*v]=min(nq[i*v],q[i]*2+1)
  q=nq
o=""
for i in reversed(range(n-1)):
  o+="*" if (q[T]>>i)&1 else "+"
print(o)