n = int(input())
total = int(input())
a = list(map(int, input().split()))

dp = [['' for i in range(total + 1)] for j in range(n + 1)]

dp[2][a[0] + a[1]] = '+'
dp[2][a[0] * a[1]] = '*'

ans = []
tmp = max(a[0] * a[1], a[0] + a[1])
for i in range(2, n):
    tmp = max(tmp * a[i], tmp + a[i])
    for j in range(min(total + 1, tmp)):
        if len(dp[i][j]) != 0 and j * a[i] <= total:
            dp[i + 1][j * a[i]] = dp[i][j] + '*'
            if i + 1 == n and j * a[i] == total:
                ans.append(dp[i + 1][j * a[i]])
        if len(dp[i][j]) != 0 and j + a[i] <= total:
            dp[i + 1][j + a[i]] = dp[i][j] + '+'
            if i + 1 == n and j + a[i] == total:
                ans.append(dp[i + 1][j + a[i]])
                                    
ans.sort(reverse = True)
print(ans[0])