#include <bits/stdc++.h>
#include <ext/hash_map>
#include <ext/numeric>
using namespace std;
using namespace __gnu_cxx;

#define EPS      1e-6
#define F        first
#define S        second
#define pi       acos(-1)
#define ll       long long
#define oo       0x3f3f3f3f
#define sz(x)    (int)x.size()
#define sc(x)    scanf("%d",&x)
#define all(x)   x.begin(),x.end()
#define rall(x)  x.rbegin(),x.rend()

int main() {
#ifndef ONLINE_JUDGE
  freopen("input.txt", "r", stdin);
  //freopen("output.txt", "w", stdout);
#endif
  cout<<500<<endl;
  for(int i=1;i<=500;i++){
    for(int j=1;j<=500;j++){
      if(i==1&&j==1)cout<<0;
      else cout<<999999997;
      if(j<500)cout<<" ";
    }
    cout<<endl;
  }
}