import java.io.*; import java.util.*; import java.util.function.*; import java.util.stream.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int[] trusts = new int[n]; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { trusts[i] += (sc.nextInt() << j); } } int[] values = new int[n]; for (int i = 0; i < n; i++) { values[i] = sc.nextInt(); } int[] dp = new int[1 << n]; for (int i = 1; i < (1 << n); i++) { dp[i] = Integer.MAX_VALUE; for (int j = 0; j < n; j++) { if ((i & (1 << j)) == 0) { continue; } dp[i] = Math.min(dp[i], dp[i ^ (1 << j)] + (((i & trusts[j]) == trusts[j]) ? 0 : values[j])) ; } } System.out.println(dp[(1 << n) - 1]); } } class Scanner { BufferedReader br; StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); public Scanner() { try { br = new BufferedReader(new InputStreamReader(System.in)); } catch (Exception e) { } } public int nextInt() { return Integer.parseInt(next()); } public long nextLong() { return Long.parseLong(next()); } public double nextDouble() { return Double.parseDouble(next()); } public String next() { try { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } } catch (Exception e) { e.printStackTrace(); } finally { return st.nextToken(); } } }