N=int(raw_input())
T=int(raw_input())
A=map(int,raw_input().split())
dp=[["-" for i in range(T+1)] for j in range(N+1)]
dp[0][A[0]]=""
for i in range(N-1):
   for j in range(T+1):
      if dp[i][j]!="-":
         if j+A[i+1] <= T:
            if dp[i+1][j+A[i+1]] == "-":
               dp[i+1][j+A[i+1]]=dp[i][j]+"+"
            else:
               dp[i+1][j+A[i+1]]=max(dp[i+1][j+A[i+1]],dp[i][j]+"+")
         if j*A[i+1] <= T:
            if dp[i+1][j*A[i+1]] == "-":
               dp[i+1][j*A[i+1]]=dp[i][j]+"*"
            else:
               dp[i+1][j*A[i+1]]=max(dp[i+1][j*A[i+1]],dp[i][j]+"*")
print dp[N-1][T]