#include <bits/stdc++.h>
template<class T> inline bool chmin(T&a, T b){if(a > b){a = b; return true;}else{return false;}}
template<class T> inline bool chmax(T&a, T b){if(a < b){a = b; return true;}else{return false;}}
#define ll long long
#define double long double
#define rep(i,n) for(int i=0;i<(n);i++)
#define REP(i,n) for(int i=1;i<=(n);i++)
#define mod (ll)(1e9+7)
#define inf (ll)(3e18+7)
#define eps (double)(1e-9)
#define pi (double) acos(-1)
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
using namespace std;

int main(){
    int n;
    cin >> n;
    vector<vector<int>> ans(n, vector<int>(n));
    rep(i, n){
        if(i % 2 == 0){
            rep(j, i/2)ans[i][j] = 2;
            ans[i][i/2] = 1;
        }else{
            rep(j, n-i/2)ans[i][j] = 2;
        }
    }
    rep(i, n){
        rep(j, n)cout << ans[i][j];
        cout << endl;
    }
}