#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) { return (ull)rng() % B; }

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int k;
    cin >> k;
    for (int i = 0; i < k; ++i) {
        cout << 4 << "\n";
        cout << -2 << " " << -1 << "\n";
        cout << 1 << " " << 0 << "\n";
        cout << 2 << " " << -i-1 << "\n";
        cout << 1 << " " << 1 << "\n";
    }
}