#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, c1, c2;
  cin >> n >> c1 >> c2;
  int s = n, t = s + 1;
  mf_graph<ll> g(t + 1);
  constexpr long long INF = 1002003004005006007;
  rep(_, c1) {
    int i;
    cin >> i;
    i--;
    g.add_edge(s, i, INF);
  }
  rep(_, c2) {
    int i;
    cin >> i;
    i--;
    g.add_edge(i, t, INF);
  }
  ll ans = 0;
  rep(i, n) rep(j, n) {
    int c;
    cin >> c;
    if (c && i < j) {
      ans += c;
      g.add_edge(i, j, c);
      g.add_edge(j, i, c);
    }
  }
  ll f = g.flow(s, t);
  ans -= f;
  cout << ans << '\n';
}