#include <iostream>

using namespace std;
int a[1001][1001];
int main(){
    int i,j,n; cin >> n;
    for(i=0;i<n;i++){
        for(j=0;j<n;j++){
            if(i<n/2){
                if(i + j>=n) a[i][j] = 1;
            }else{
                if(i + j>=n) a[i][j] = 2;
                else a[i][j] = 1;
            }
        }
    }
    for(i=0;i<n;i++){
        for(j=0;j<n;j++){
            cout << a[i][j];
        }
        cout << endl;
    }
}