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

const int kNMax = 1010;
int n, m, v[kNMax], t[kNMax], c[kNMax], sol;
vector <int> efect[kNMax];

void Citire() {
    ifstream in("aprindere.in");
    int i, j, x;
    in >> n >> m;
    for (i = 0; i < n; ++i)
        in >> v[i];
    for (i = 0; i < m; ++i) {
        in >> t[i] >> c[i];
        for (j = 0; j < c[i]; ++j){
            in>>x;
            efect[i].push_back(x);
        }
    }
    in.close();
}

void Solve() {
    int i, j;
    for (i = 0; i <= n; ++i) {
        if(!v[i]) {
            sol += t[i];
            for (j = 0; j < c[i]; ++j)
                v[efect[i][j]] ^= 1;
        }
    }
}

void Afisare() {
    ofstream out("aprindere.out");
    out << sol << '\n';
    out.close();
}

int main () {
    Citire();
    Solve();
    Afisare();
    return 0;
}