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

/**************************************************************
	Problem: 1185
	User: zhenghaoxuan
	Language: C++
	Result: Wrong Answer
****************************************************************/