#include<bits/stdc++.h>
using namespace std;
int n,a[20] [20];
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(i==j) a[i][j]=1;
			else a[i][j]=0;
		}
		
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
		cout<<setw(3)<<a[i][j];	
		}
		cout<<endl;
	}

}

/**************************************************************
	Problem: 1190
	User: suziqian
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2076 kb
****************************************************************/