#include <bits/stdc++.h>
using namespace std;
using ll = long long;

constexpr int N = 50, M = 20;

char a[N][N + 1];
int c[M], l[M];
array<array<int, 2>, 2000> v[M];

int main() {
    int n_, m_;
    cin >> n_ >> m_;

    for (int i = 0; i < N; i++) {
        cin >> a[i];
    }

    for (int j = 0; j < M; j++) {
        cin >> c[j] >> l[j];
        for (int k = 0; k < l[j]; k++) {
            cin >> v[j][k][0] >> v[j][k][1];
        }
    }

    cout << 0 << endl;

    return 0;
}