#include <iostream>

using namespace std;
int n;

void rec(int x) {
    if(x == 1) {
        for(int i = 0; i < n; i++) {
            cout << "*";
        }
        cout << endl;
        return;
    }
    if(x == n) {
        for(int i = 0; i < n; i++) {
            cout << "*";
        }
        cout << endl;
    }
    else {
        for(int i = 0; i < n; i++) {
            if(i == x - 1 or i == n - x) {
                cout << "*";
            }
            else {
                cout << " ";
            }
        }
        cout << endl;
    }
    rec(x - 1);
}
int main(){
    cin >> n;
    rec(n);
    return 0;
}
/*
 n = 7
0 *******
1  *   *
2   * *
3    *
4   * *
5  *   *
6 *******
 */