#include <stdio.h> #include <bits/stdc++.h> #include <atcoder/all> using namespace atcoder; using mint = modint998244353; using namespace std; #define rep(i,n) for (int i = 0; i < (n); ++i) #define Inf 1000000001 int main(){ int n; cin>>n; vector ans(n,vector<int>(n,0)); rep(i,n){ rep(j,n){ if(i<n/2 && j<n/2){ if(i<=j)ans[i][j] = 2; if(i==j)ans[i][j] = 1; } if(i<n/2 && j>=n/2){ ans[i][j] = 2; } if(j>=n/2 && j>=n/2){ if(i<=j)ans[i][j] = 2; } } } rep(i,n){ rep(j,n){ cout<<ans[i][j]; } cout<<endl; } return 0; }