#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a[100][100],n,i,j,t=1;
	cin>>n;
	for(i=0;i<n;i++){
		for(j=i;j<n;j++){
			a[i][j]=0;
		}
	}
	for(i=0;i<n;i++){
		for(j=i;j<n;j++){
			a[i][j]=t;
			t++;
		}
		t=1;
	}
	for(i=0;i<n;i++){
		for(j=0;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: houshanglin
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/