DrawSandGlass

import java.util.Scanner;


public class SandGlass {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt(); // height of the sand clock
        int stars = n;
        int dots = 1;

        for (int i = 0; i < n; i++) {
            System.out.print('*');
        }
        System.out.println();

        while (true) {
            DrawLine(stars, dots);
            dots++;
            stars -= 2;
            if (stars == 1) {
                break;
            }
        }
        stars = 5;
        dots -= 2;
        while (true) {
            DrawLine(stars, dots);
            stars += 2;
            dots--;
            if (dots == 0) {
                break;
            }
        }

        for (int i = 0; i < n; i++) {
            System.out.print('*');
        }

    }

    private static void DrawLine(int stars, int dots) {
        for (int i = 0; i < dots; i++) {
            System.out.print('.');
        }
        for (int i = 0; i < stars - 2; i++) {
            System.out.print('*');
        }
        for (int i = 0; i < dots; i++) {
            System.out.print('.');
        }
        System.out.println();
    }

}