#include<bits/stdc++.h>
using namespace std;
int main()
{
 int n;
    cin >>n;
    for (int i=0;i<n;i++){
        int x=(i+1)*n;
        for (int j=0;j<n;j++){
            cout<<setw(3)<<x-j;
        }
        cout<<endl;
    }
 	return 0;
}

/**************************************************************
	Problem: 1189
	User: sf751616
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/