#yuki_10

n=int(raw_input())
t=int(raw_input())
a=map(int,raw_input().split())
dp=[['?' for i in xrange(t+1)] for j in xrange(n+1)]
dp[0][a[0]]=''
for i in xrange(n-1):
 for j in xrange(t+1):
  p=j+a[i+1]
  m=j*a[i+1]
  if dp[i][j]!='?':
   if p<=t:
    if dp[i+1][p]=='?':
     dp[i+1][p]=dp[i][j]+'+'
    else:
     dp[i+1][p]=max(dp[i+1][p],dp[i][j]+'+')
   if m<=t:
    if dp[i+1][m]=='?':
     dp[i+1][m]=dp[i][j]+'*'
    else:
     dp[i+1][m]=max(dp[i+1][m],dp[i][j]+'*')
print dp[n-1][t]