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

int main() {
    int t, r;
    cin >> t >> r;
    for (int i = 0; i < t; i++) {
        int n;
        cin >> n;
        for (int j = 0; j < n; j++) {
            int s;
            cin >> s;
        }
        cout << 0 << endl;
    }
    return 0;
}