#include<bits/stdc++.h>
using namespace std;
int main(){
int a[10][10]={0},i,j,n,c=1;
cin>>n;
	for(i=0;i<n;i++){
		for(j=1;j<=n-i;j++){
			a[i+j][j]=c;
			a[j][i+j]=c;
			c++;
	}
}
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			cout<<setw(5)<<a[i][j];
		}
		cout<<endl;
	}
}
	
	
	
	
	
	
	
	
	
	
	
/**************************************************************
	Problem: 1404
	User: linweilun
	Language: C++
	Result: Accepted
	Time:18 ms
	Memory:2072 kb
****************************************************************/