#include<bits/stdc++.h>
using namespace std;
int main()
{
    int i,n,s=1,j,a[10][10];
    cin>>n;
    for(i=0;i<n;i++){
        for(j=0;j<n-i;j++){
            a[j][j+i]=s;
            a[j+i][j]=s;
            s++;
        }
    }
    for(i=0;i<n;i++){
        for(j=0;j<n;j++){
            cout<<setw(5)<<a[i][j];
        }
        cout<<endl;
    }
    return 0;
}
/**************************************************************
	Problem: 1404
	User: wuzhijing
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2072 kb
****************************************************************/