using System;

​

    public class Program

    {

    public static void Main(){

            int sp=5;

           for (int i = 1; i <=sp; i++)

            {

                for (int j = 1; j < sp - i +1; j++)

                {

                    Console.Write(" ");

                }

                for (int k = 1; k <= i; k++)

                {

                    Console.Write("*");

                    Console.Write(" ");

​

​

                }

                Console.WriteLine();

​

        }}}

​

​