using System;

public class Program

{

    public static void Main()

    {

        /*Create a system that will ask 

            for the total price of the meal 

            and if they would like to give 

            a tip or not. If they would 

            like to give a tip add 12% to 

            the meal price. Display the answer */

        double meal;

        string tip;

        double final;

        double tipRecieved;

        Console.WriteLine("What was the total price of your meal?");

        meal = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("Would you like to give a tip?");

        tip = Console.ReadLine().ToLower();

        if(tip == "yes"){

            tipRecieved = (meal/12) + meal;

            final = Math.Round(tipRecieved);

            Console.WriteLine("Your final price comes to £" + final);

        }else{

            Console.WriteLine("Your total is £" + meal);

        }

    }

}