#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(v) v.begin(),v.end()
typedef long long ll;
 
#include<bits/stdc++.h>
using namespace std;
 
int main(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
  
  ll z;
  for(ll i=1;i<=1000000;i++){
    if(i*i+3*i-2000000000<=0) z=i;
    else break;
  }
  
  ll N=z*(z+1)/2;
  vector<pair<ll,ll>> A;
  ll x=N+z-1,y=0;
  for(ll i=z;i>0;i--){
    A.push_back({x,y});
    x--;
    y+=i;
  }
  for(ll i=2;i<=z;i++){
    A.push_back({x,y});
    x-=i;
    y++;
  }
  
  vector<pair<ll,ll>> ANS;
  int a=A.size();
  rep(i,a){
    ll ax=A[i].first,ay=A[i].second;
    ANS.push_back({ax,ay});
  }
  rep(i,a){
    ll ax=A[i].first,ay=A[i].second;
    ANS.push_back({-ay,ax});
  }
  rep(i,a){
    ll ax=A[i].first,ay=A[i].second;
    ANS.push_back({-ax,-ay});
  }
  rep(i,a){
    ll ax=A[i].first,ay=A[i].second;
    ANS.push_back({ay,-ax});
  }
  
  cout<<4*a<<endl;
  rep(i,4*a) cout<<ANS[i].first<<" "<<ANS[i].second<<endl;
  
  return 0;
}