#include<bits/stdc++.h>
using namespace std;
int main(){
int n,a[15][15]={0};
cin>>n;
for(int i=0;i<n;i++){
	
    a[i][i]=1; 
   
} 
for(int i=0;i<n;i++){
	for(int j=0;j<n;j++){
	    cout<<setw(3)<<a[i][j];	
	}
	cout<<endl;
}
	return 0;
}



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