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

	return 0;
}

/**************************************************************
	Problem: 1189
	User: 15159808820
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/