#include <iostream>
#include <iomanip>
#include <cmath>
#include <cstdio>

using namespace std;

int main(){
    int n,i,j,a[110][110];
    cin>>n;
    for(i=1;i<=n;i++){
    	for(j=1;j<=n;j++){
    		a[i][j]=((i-1)*n)+j;
		}
	}
	for(i=1;i<=n;i++){
		for(j=n;j>=1;j--){
			cout<<setw(3)<<a[i][j];
		}
		
		cout<<endl;
	}
}
/**************************************************************
	Problem: 1189
	User: admin
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/