#include <iostream>
#include <iomanip>
using namespace std;
int main() {
    int a[15][15]={0},i,j,n,b;
	cin>>n;
	b=n;
	for(i=0;i<n;i++){
		for(j=0;j<n;j++){
			a[i][j]=b;
			b--; 
		}
		b=b+n*2;
	}
	for(i=0;i<n;i++){
		for(j=0;j<n;j++){
			cout<<setw(3)<<a[i][j];
		}
		cout<<endl;
	}
    return 0;
}
/**************************************************************
	Problem: 1189
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/