N=int(input())
T=int(input())
A=list(map(int,input().split()))

S=[0,A[0]]
for a in A[1:]:
    S.append(min(S[-1]+a,S[-1]*a))

def calc(i,T):
    #print(i,T)
    if i==0:
        if T==A[0]:
            return ""
        else:
            return -1
        
    if calc(i-1,T-A[i])!=-1:
        return calc(i-1,T-A[i])+"+"

    if T%A[i]==0 and T//A[i]>=S[i]:
        if calc(i-1,T//A[i])!=-1:
            return calc(i-1,T//A[i])+"*"
        
    return -1

print(calc(N-1,T))