using System;

public class Program

{

    public static void Main()

    {

        var fizzBuzz = new FizzBuzz();

        Console.WriteLine($"Say: 1. Speak: {fizzBuzz.Say(1)}");

        Console.WriteLine($"Say: 2. Speak: {fizzBuzz.Say(2)}");

        Console.WriteLine($"Say: 3. Speak: {fizzBuzz.Say(3)}");

        Console.WriteLine($"Say: 4. Speak: {fizzBuzz.Say(4)}");

        Console.WriteLine($"Say: 5. Speak: {fizzBuzz.Say(5)}");

    }

    public class FizzBuzz

    {

        public string Say(int number)

        {

            // Change the code in here

            if(number % 3 == 0)

            {

                return "TODO";

            }

            return number.ToString();

        }

    }

}