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==last:
        if T in SET:
            for i in range(len(ANS)):
                if ANS[i]==T:
                    return bin(i)[2:].zfill(last)
        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

ANS=[A[0]]
last=min(25,N-1)

for i in range(1,last+1):
    NANS=[]
    for ans in ANS:
        NANS.append(ans+A[i])
        NANS.append(ans*A[i])
    ANS=NANS

SET=set(ANS)
        
ANS=calc(N-1,T)

LANS=""
for ans in ANS:
    if ans=="0":
        LANS+="+"
    elif ans=="1":
        LANS+="*"
    else:
        LANS+=ans

print(LANS)