#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j,s=1,a[11][11]={0};
	cin>>n;
	for(i=n;i>0;i--){
		for(j=1;j<=n;j++){
			a[i][j]=s;
			s++;
		}
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			cout<<setw(3)<<a[i][j];
		}
		cout<<endl;
	}
}

/**************************************************************
	Problem: 1185
	User: chenjunlin
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2072 kb
****************************************************************/