import java.util.Scanner;

public class Main{
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] b = new int[n];
        for(int i = 0; i < n; i++){
            b[i] = 0;
            for(int j = 0; j < n; j++){
                int x = sc.nextInt();
                b[i] += (1<<j) * x;
            }
        }
        int[] a = new int[n];
        for(int i = 0; i < n; i++)  a[i] = sc.nextInt();
        int ans = 1<<30;
        for(int i = 0; i < 1<<n; i++){
            int score = 0;
            for(int j = 0; j < n; j++){
                if(((i>>j)&1) == 1)  score += a[j];
            }
    
            // 高速化出来る(しなくてもよい)
            // if(score >= ans) continue;
    
            int lie = i, confess = 0, k = -1;
            while(++k < n){
                if(((confess>>k)&1) == 1)  continue;
                if((lie&b[k]) == b[k]){
                    confess |= 1<<k;
                    lie |= 1<<k;
                    k = -1;
                }
            }
            
            if(confess == (1<<n)-1) ans = Math.min(ans, score);
        }
        System.out.println(ans);
    }
}