import sys
read = sys.stdin.buffer.read

N,T,*A=map(int,read().split())
dp=[set() for _ in range(N+1)]
dp[N].add(T)
for n in range(N,0,-1):
    x=A[n-1]
    for y in dp[n]:
        if y-x>=0: dp[n-1].add(y-x)
        if y%x==0: dp[n-1].add(y//x)

assert 0 in dp[0]
ans=[]
x=0
for n in range(1,N+1):
    y=A[n-1]
    if x+y in dp[n]:
        ans.append('+')
        x+=y
    else:
        ans.append('*')
        x *= y
print(''.join(ans[1:]))