using System;

public class Program

{

    public static void Main()

    {

        int a;

        Console.WriteLine("Enter the number of rows in pyramid:");

        a = Int32.Parse(Console.ReadLine());

        Pyramid(a);

    }

    static void Pyramid (int a)

    {

        int total = 2*a-1;

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

        {

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

            {

                Console.Write(" ");

            }

            for ( int k =1; k<= 2*i-1; k++)

            {

                Console.Write("*");

            }

            Console.WriteLine();

        }

    }

}