#include <iostream>
#include <cmath>

using namespace std;

int main() {
    int n;
    while (cin>>n, n) {
        for (int i = 0; i < n; ++i) {
            for (int j = 0; j < n; ++j) {
                cout << abs(i -j) + 1 << ' ';
            }
            cout << endl;
        }
        cout << endl;
    }

    return 0;
}