#include <iostream>
using namespace std;
int q[100][100];
int main()
{
    int n;
    while (cin >> n, n)
    {
        for (int i = 0; i < n; i ++ )
        {
            q[i][i] = 1;
            for (int j = i + 1, k = 2; j < n; j ++, k ++ ) q[i][j] = k;
            for (int j = i + 1, k = 2; j < n; j ++, k ++ ) q[j][i] = k;
        }
        for (int i = 0; i < n; i ++ )
        {
            for (int j = 0; j < n; j ++ ) cout << q[i][j] << ' ';
            cout << endl;
        }
        cout << endl;
    }
    return 0;
}