// zhoujingxuan
#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin >> n;
    for (int i = n - 1, k = 1, p = 2 * n - 1; i >= 0; k += 2, i--, p -= 2)
    {
        for (int j = 1; j <= i; j++)
            cout << ' ';
        for (int j = 1; j <= k; j++)
            cout << '*';
        for (int j = 2; j <= n; j++)
        {
            for (int z = 1; z <= p; z++)
                cout << ' ';
            for (int z = 1; z <= k; z++)
                cout << '*';
        }
        cout << endl;
    }
    return 0;
}