#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j,a[10][10]={0};
	cin>>n;
	for(i=1;i<=n;i++){
		a[i][i]=1;
	} 
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			cout<<setw(3)<<a[i][j];
		}
		cout<<endl; 
	}
	return 0;
}
//setw

/**************************************************************
	Problem: 1190
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/