#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,a[9][9];
    cin>>n;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(i+j<n) a[i][j]=i+j+1;
            else a[i][j]=n*2-(i+j)-1;
        }   
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++) 
		cout<<setw(3)<<a[i][j];
        cout<<endl;
    }
 	return 0;
}

/**************************************************************
	Problem: 1193
	User: sf751616
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/