N = int(raw_input())
T = int(raw_input())
a = map(int, raw_input().split())
dp = [[a[0],""]]

for ai in a[1:]:
    ndp = []
    for s, e in dp:
        if s+ai <= T: ndp.append([s+ai, e+"0"])
        if s*ai <= T: ndp.append([s*ai, e+"1"])
    dp = ndp
    
ans = "1"*100
for s, e in dp:
    if s == T:
        ans = min(ans, e)
print ans.replace("1","*").replace("0","+")