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

	return 0;
}

/**************************************************************
	Problem: 1191
	User: zhuangsongyu
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/