#include<bits/stdc++.h>
using namespace std;
int n;
int a[20][20];
int c=1;
int main(){
    cin>>n;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
	        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: 1184
	User: huangluowei
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2076 kb
****************************************************************/