#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j,c=1,a[10][10]={0};
    cin>>n;
    for(i=0;i<n;i++){
        for(j=1;j<=n-i;j++){
            a[j][j+i]=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: wangyiyang
	Language: C++
	Result: Accepted
	Time:25 ms
	Memory:2072 kb
****************************************************************/