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

int main() {
    int n, ans = 1000000000;
    cin >> n;
    vector<int> x(n), a(n);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            int x_ij;
            cin >> x_ij;
            x.at(i) += x_ij << j;
        }
    }
    for (int i = 0; i < n; i++) {
        cin >> a.at(i);
    }
    for (int i = 0; i < 1 << n; i++) {
        int cache = i;
        for (int j = 0; j < n; j++) {
            for (int k = 0; k < n; k++) {
                if ((cache & x.at(k)) == x.at(k)) {
                    cache |= 1 << k;
                }
            }
        }
        if (cache == (1 << n) - 1) {
            int cost = 0;
            for (int j = 0; j < n; j++) {
                if (i & (1 << j)) cost += a.at(j);
            }
            ans = min(ans, cost);
        }
    }
    cout << ans << endl;
}