#include <iostream>
#include <iomanip>
#include <cmath>
#include <cstdio>

using namespace std;

int main(){
    int n,i,j,a[110][110];
    cin>>n;
    for(i=1;i<=n;i++){
    	for(j=1;j<=n;j++){
    		if(i+j!=n+1)
    		a[i][j]=0;
    		else
    		a[i][j]=1;
		}
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			cout<<setw(3)<<a[i][j];
		}
		
		cout<<endl;
	}
}
/**************************************************************
	Problem: 1191
	User: admin
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/