#include<bits/stdc++.h>
using namespace std;
int n,a[20][20];
int main(){
cin>>n;
for(int i=1;i<=n;i++){
 

	for(int j=1;j<=n;j++){
		if(i<=j)a[i][j]=i; 
		 else a[i][j]=j; 
		  
	
	
	}
}
for(int i=1;i<=n;i++){
	for(int j=1;j<=n;j++){
	
	cout<<setw(3)<<a[i][j];
	} 
	cout<<endl;
}
	return 0;
}

/**************************************************************
	Problem: 1196
	User: lihean
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/