using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Which present do you want? ");

        String present = Console.ReadLine();

        present = present.ToLower();

        if (present != "car" && present != "computer")

        {

            Console.WriteLine(":-(");

        }

        else

        {

            Console.WriteLine(":-)");

        }

    }

}