using System;

public class Program

{

    public static int NhapSoNguyen(string note) {

        Console.WriteLine(note);

        int n = int.Parse(Console.ReadLine());

        return n;

    }

    public static void Main()

    {

        int h = NhapSoNguyen("Nhap chieu cao: ");

        int n = NhapSoNguyen("Nhap chieu dai: ");

        int m = NhapSoNguyen("Nhap chieu rong: ");

        Console.WriteLine("Hinh chu nhat rong");

        for (int i = 1; i <= n; i++) {

            for (int j = 1; j <= m; j++) {

                if (i == 1 || j == 1 || i == n || j == m) {

                    Console.Write("*");

                } else {

                    Console.Write(" ");

                }

            }

            Console.WriteLine();

        }

        Console.WriteLine("Hinh chu nhat dac");

        for (int i = 1; i <= n; i++) {

            for (int j = 1; j <= m; j++) {

                Console.Write("*");

            }

            Console.WriteLine();

        }

        Console.WriteLine("Tam giac vuong can dac");

        for (int i = 1; i <= h; i++) {

            for (int j = 1; j <= h; j++) {

                if (j == 1 || (i != 1 && j == i) || i == h) {

                    Console.Write("*");

                }

            }

            Console.WriteLine();

        }

    }

}