#include <iostream>

#include <cmath>

#include <iomanip>

#include <cstdlib>

using namespace std;
int main (){
    int n, difference;
    cin >> n;
    for (int i = 1; i <= n; i ++){
        for (int j = 1; j <= n; j ++){
            if (i == j  || j == n - i + 1 || n - i == n / 2 || n - j == n / 2){
                cout << "* ";
            }
            else{
                cout << ". ";
            }
        }
        cout << endl;
    }
}









#include <iostream>

#include <cmath>

using namespace std;

int main() {
	int n, m;
	cin >> n >> m;
	for (int i = 1; i <= n; i++){
		for (int j = 1; j <= m; j++){
			if ((j % 2 == 0 && i % 2 == 0) || (j % 2 == 1 && i % 2 == 1)) {
				cout << ". ";
			}
			else {
				cout << "* ";
			}
		}
		cout << endl;
	}
}








#include <iostream>

#include <cmath>

#include <iomanip>

#include <cstdlib>

using namespace std;
int main (){
    int n;
    cin >> n;
    for (int i = 1; i <= n; i ++){
        for (int j = 1; j <= n; j ++){
            if (j <= n - i){
                cout << "0 ";
            }
            else if (j == n - i + 1){
                cout << "1 ";
            }
            else if (j > n - i + 1){
                cout << "2 ";
            }
        }
        cout << endl;
    }
}









#include <iostream>

#include <cmath>

#include <iomanip>

#include <cstdlib>

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