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