ConsoleBeepReadCursorPositonColor

using System;

class HelloCSharp
{
    static void Main()
    {
        Console.WriteLine("Hello C#!");
        Console.BackgroundColor = ConsoleColor.Blue;
        Console.SetCursorPosition(10, 10);
        Console.Write("Please enter your age: "); string text = Console.ReadLine();
        int age = int.Parse(text);

        Console.WriteLine("Your age will be {0} after 10 years", age + 10);

        Random rand = new Random();
        for (int i = 0; i < 10; i++)
        {
            Console.Beep(rand.Next(40, 15000), rand.Next(100, 1000));
        }
    }
}