using System;

​

namespace MyApplication

{

    class Program

    {

        static void Main(string[] args)

        {

            int n;

            Console.Write("Nhap n: ");

            n = Convert.ToInt16(Console.ReadLine());

            for (int i = n; i > 0; i--) 

            {

                for (int j = 0; j < i; j++) 

                {

                    Console.Write("*");

                }

                Console.WriteLine(); 

            }

        }

    }

}