#include<bits/stdc++.h>
using namespace std;
int n,c=1;
int a[25][25];
int main(){
 cin>>n;
   for(int j=1;j<=n;j++){
   	for(int i=1;i<=n;i++){
   	a[i][j]=c++;
   }
   }
    for(int i=1;i<=n;i++){
   	for(int j=1;j<=n;j++){
   cout<<setw(3)<<a[i][j];
   }
   cout<<endl;
   }
	return 0;
}

/**************************************************************
	Problem: 1186
	User: wangyousi
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2076 kb
****************************************************************/