#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j,x=1;
	cin>>n;
	int a[11][11]={0};
	for(i=0;i<n;i++){
		for(j=0;j<n-i;j++,x++){
			a[j][j+i]=x;
			a[j+i][j]=x;
		}
	}
	/*
	
	
	
	*/
	for(i=0;i<n;i++){
		for(j=0;j<n;j++){
			printf("%5d",a[i][j]);

		}
		cout<<endl;
	}
	return 0;
}

/**************************************************************
	Problem: 1404
	User: tangkaixuan
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2076 kb
****************************************************************/