#include <iostream>
#include <vector>
using namespace std;

#include <atcoder/maxflow>

int main() {
    cin.tie(nullptr), ios::sync_with_stdio(false);
    int N, S, T;
    cin >> N >> S >> T;
    const int gs = N, gt = gs + 1;
    atcoder::mf_graph<long long> mf(gt + 1);
    constexpr long long inf = 1LL << 40;

    while (S--) {
        int e;
        cin >> e;
        mf.add_edge(gs, e - 1, inf);
    }
    while (T--) {
        int r;
        cin >> r;
        mf.add_edge(r - 1, gt, inf);
    }

    long long ret = 0;
    for (int i = 0; i < N; ++i) {
        for (int j = 0; j < N; ++j) {
            int c;
            cin >> c;
            if (i <= j) ret += c;
            mf.add_edge(i, j, c);
        }
    }
    cout << ret - mf.flow(gs, gt) << endl;
}