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

/**************************************************************
	Problem: 1190
	User: chenyaohuo
	Language: C++
	Result: Presentation Error
****************************************************************/