n = int(input())
total = int(input())
A = list(map(int,input().split()))

inf = 1<<60
dp = [inf]*(total+1)
dp[0] = 0
for a in A:
    ndp = [inf]*(total+1)
    for j in range(total+1):
        if dp[j] == inf:
            continue
        if a+j <= total:
            ndp[a+j] = min(ndp[a+j],dp[j]<<1)
        if a*j <= total:
            ndp[a*j] = min(ndp[a*j],1+dp[j]<<1)
    dp = ndp

ans = []

for i in range(1,n)[::-1]:
    if dp[total] >> i & 1:
        ans.append("*")
    else:
        ans.append("+")
print(*ans,sep="")