using System;

public class Program

{

    public static void Main()

    {

        string pet;

        Console.WriteLine("Do you like cats or dogs?" );

        pet = Console.ReadLine();

        switch(pet)

        {

            case "dogs":

                Console.WriteLine("Ruff Ruff I hear that! Dogs rule!");

                break; 

            case "cats":

                Console.WriteLine("Cats are purr-fect!");

                break;  

            default:

                Console.WriteLine("Sorry, I do not understand. Please try again");

                break;

        }

    }

}