#include <iostream>
using namespace std;
int main() {
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n - i; ++j) cout << '#';
        for (int j = 1; j <= 2 * i - 1; ++j) cout << '*';
        for (int j = 1; j <= n - i; ++j) cout << '#';
        cout << '\n';
    } for (int i = n - 1; i >= 1; --i) {
        for (int j = 1; j <= n - i; ++j) cout << '#';
        for (int j = 1; j <= 2 * i - 1; ++j) cout << '*';
        for (int j = 1; j <= n - i; ++j) cout << '#';
        cout << '\n';
    } return 0;
}