#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: hongguangxi
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/