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


/**************************************************************
	Problem: 1184
	User: caiqiaoxi
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/