# import sys
# input = sys.stdin.readline
def mp():return map(int,input().split())
def lmp():return list(map(int,input().split()))
import math
import bisect
from copy import deepcopy as dc
from itertools import accumulate
from collections import Counter, defaultdict, deque
def ceil(U,V):return (U+V-1)//V
def modf1(N,MOD):return (N-1)%MOD+1

n = int(input())
a = lmp()
grid = []
for i in range(n):
    b = lmp()
    grid.append(b)
ans = 0
ans_a = 0
for i in range(2**n):
    cnt = 0
    for j in range(n):
        if i & 1 << j:
            cnt += a[j]
            for k in range(j+1, n):
                if i & 1 << k:
                    cnt += grid[j][k]
    if ans <= cnt:
        ans = cnt
        ans_a = i
print(ans)
ans_n = []
for i in range(n):
    if ans_a & 1 << i:
        ans_n.append(i+1)
print(*ans_n)