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

/**************************************************************
	Problem: 1189
	User: wngjinming
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/