using System;

public class Program

{

    public static void Main()

    {

        const int TOTAL_DE_LINHAS = 5;

​

        for(int i = 0; i <= TOTAL_DE_LINHAS*2; i++)

            if(i % 2 != 0)

                Console.WriteLine(new string(' ', (TOTAL_DE_LINHAS*2 - i) /2 ) + new string('*', i));

    }

}