#include <iostream>
using namespace std;

int min(int a,int b,int c,int d){
    if(a<b&&a<c&&a<d)return a;
    else if(b<c&&b<d)return b;
    else if(c<d)return c;
    else return d;
}

int main()
{
    int num;cin >> num;
    while(num)
    {
        for(int i = 0; i < num; i ++){
            for(int j = 0; j < num; j ++)
            cout << min(i+1, j+1, num-i, num-j) << " ";
            cout << endl;
        }


        cout << endl;
        cin >> num;
    }

    return 0;
}