#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    int n;
    cin >> n;
    
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            cout << setw(3) << i * n + j + 1;
        }
        cout << endl;
    }
    
    return 0;
}
/**************************************************************
	Problem: 1184
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/