using System;

public class Program

{

    public static void Main()

    {       

            int i=5;

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

            { for   (int z=0; z<i-y; z++)     {

                      Console.Write(" ");    } 

                for (int x=1; x<y+2; x++) {

                    Console.Write("*");

                                         }

                Console.Write("\n");

            }

    }

}

​

​

​