#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) << (N * (N - j) - i);
        }
        cout << endl;
    }

    return 0;
}
/**************************************************************
	Problem: 1187
	User: fuyijun
	Language: C++
	Result: Wrong Answer
****************************************************************/