#include<bits/stdc++.h>
using namespace std;
int n;
int a[20][20];
int c=1;
int main(){
	cin>>n;
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			a[i][j]=c++;
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
		cout<<setw(3)<<a[i][j];
	
		}	
		cout<<endl;	
	}
	


	return 0;
}


/**************************************************************
	Problem: 1184
	User: wuzihang
	Language: C++
	Result: Accepted
	Time:13 ms
	Memory:2076 kb
****************************************************************/