#include<bits/stdc++.h>
using namespace std;
int n,a[20][20];
int main(){
cin>>n;
for(int i=1;i<=n;i++){
	int x=1;
	for(int j=i;j<=n;j++){
	a[i][j]=x++;
 }
}
for(int i=1;i<=n;i++){
	for(int j=1;j<=n;j++){
	if(a[i][j]==0) cout<<setw(5)<<" ";
	else cout<<setw(5)<<a[i][j];
 }
 cout<<endl;
}

	return 0;
}

/**************************************************************
	Problem: 1204
	User: wangyousi
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/