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

/**************************************************************
	Problem: 1184
	User: yangjunwen
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/