N = input()
T = input()
A = map(int,raw_input().split())
dp = [[-1]*(T+1) for i in xrange(N)]
dp[0][A[0]] = ""
for i in xrange(1,N):
    for j in xrange(T):
    	if dp[i-1][j] == -1: continue
        for o in ["+","*"]:
        	k=eval("j%sA[i]"%o)
        	if k <= T: dp[i][k]=max(dp[i][k],dp[i-1][j]+o)
print dp[N-1][T]