#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  ll N;
  cin >> N;

  vector<ll> v(N);
  for(auto &i : v) {
    for(ll j = 0; j < N; j++) {
      ll x;
      cin >> x;
      i |= x << j;
    }
  }

  vector<ll> A(N);
  for(auto &i : A) { cin >> i; }

  vector<ll> dp(1 << N, 1e18);
  dp[0] = 0;
  for(ll i = 0; i < 1 << N; i++) {
    for(ll j = 0; j < N; j++) {
      if(i >> j & 1) { continue; }
      ll nx = i | 1 << j;
      if((i & v[j]) == v[j]) { dp[nx] = min(dp[nx], dp[i]); }
      else { dp[nx] = min(dp[nx], dp[i] + A[j]); }
    }
  }

  cout << (dp.back() == 1e18 ? -1 : dp.back()) << "\n";
}