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

struct P {
    bool operator<(const P &p) const {
        return p.x * y > x * p.y;
    }
    int x, y;
};

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int n = 1000000, m = n / 8 - 1;

    vector<P> p(m);
    int k = 0;
    for (int w = 1; k < m; w++) {
        for (int i = 1;; i++) {
            int j = w - i;
            if (i >= j) break;
            if (gcd(i, j) != 1) continue;
            p[k++] = { i, j };
            if (k >= m) break;
        }
    }
    sort(p.begin(), p.end());

    cout << n << '\n';

    int x = 80106589, y = 0;
    for (int h = 0; h < 4; h++) {
        auto f = [&](int dx, int dy) {
            cout << x << ' ' << y << '\n';
            for (int i = 0; i < h; i++) {
                int t = dx;
                dx = -dy;
                dy = t;
            }
            x += dx;
            y += dy;
        };
        f(0, 1);
        for (int i = 0; i < m; i++) {
            f(-p[i].x, p[i].y);
        }
        f(-1, 1);
        for (int i = m - 1; i >= 0; i--) {
            f(-p[i].y, p[i].x);
        }
    }
    cout << flush;

    return 0;
}