#include<bits/stdc++.h>
using namespace std;
int n,a[20][20];
int main(){
cin>>n;
for(int i=0;i<n;i++){
	for(int j=0;j<n;j++){
		if(i+j==n-1) a[i][j]=1;
		else a[i][j]=0;
	}
}
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: 1191
	User: lihean
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/