#include <iostream>

using namespace std;
int main()
{
    int n;
    while(cin >> n && n>0)
    {
        for(int i=1;i<=n;i++)
        {
            for(int j=1;j<=n;j++)
            {
                if(i==j) cout << 1 << " ";
                else cout << abs(i-j)+1 << " ";
            }
            cout << endl;
        }
        cout << endl;
    }
    return 0;
}