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

int main() {
    int n;
    cin >> n;

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            int value = (i < j) ? j : i;
            cout << setw(3) << (n - value + 1);
        }
        cout << endl;
    }

    return 0;
}
/**************************************************************
	Problem: 1198
	User: fandaohan
	Language: C++
	Result: Wrong Answer
****************************************************************/