#include<bits/stdc++.h>
using namespace std;
int main(){
	
	int i,n,j,a[15][15]={0},h=1;
	cin>>n;
	for(i=n-1;i>=0;i--){
		for(j=0;j<n;j++){
			a[i][j]=h;
			h++; 
		}
	}
	for(i=0;i<=n-1;i++){
		for(j=0;j<=n-1;j++){
			cout<<setw(3)<<a[i][j];
		}
		cout<<endl;
	}

	return 0;
}

/**************************************************************
	Problem: 1185
	User: huangyaojie3
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/