using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("By Brandon Eduardo Cortes Correa");

        Console.WriteLine("");

        Console.WriteLine("Insert the number of GB you want to convert to bytes: ");

        var n1 = Convert.ToInt32(Console.ReadLine());

        var r = n1 * 1073741824;

        Console.WriteLine("{0} GB is equal to: {1} bytes",n1,r);

    }

}