n = int(input())
a = list(map(int, input().split()))
b = [list(map(int, input().split())) for i in range(n)]


ans = 0
bit = 0
for bit_state in range(1 << n):
    score = 0
    tmp = 0
    for i in range(n):
        if (bit_state >> i) & 1:
            score += a[i]
            for j in range(n):
                if (bit_state >> j) & 1:
                    tmp += b[i][j]
    score += tmp // 2
    if score >= ans:
        ans = max(ans, score)
        bit = bit_state

res = []
for i in range(n):
    if (bit >> i) & 1:
        res.append(i + 1)
print(ans)
print(*res)