#include <bits/stdc++.h>
using namespace std;
#define all(v) (v).begin(),(v).end()
#define pb(a) push_back(a)
#define rep(i, n) for(int i=0;i<n;i++)
#define foa(e, v) for(auto& e : v)
using ll = long long;
const ll MOD7 = 1000000007, MOD998 = 998244353, INF = (1LL << 60);
#define dout(a) cout<<fixed<<setprecision(10)<<a<<endl;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n, a, b, c, d, e, f;
    cin >> n >> a >> b >> c >> d >> e >> f;
    cout << 4 << endl;
    int dy[4] = {-1, 0, 0, 1};
    int dx[4] = {0, -1, 1, 0};
    rep(k, 4) {
        cout << dy[k] + e << " " << dx[k] + f << endl;
    }
    return 0;
}