using System;

​

namespace Program

{

    class Program

    {

        public static void Main(string[] args)

        {

            string select, kare, gina, hum, man, ric, soft, tots = "";

            bool back = true;

            double karekare, ginataan, humba, mangga, rice, softdrinks, cash, change, total=0;

            do{

                Console.Write("---------------\n\n\t***SINTANG KAN-ANAN***\n\nMenu of the Day:\n[1] Kare-Kare - 20.00\n[2] Ginataang Gata - 15.00\n[3] Humba - 45.00\n[4] mangga - 35.00\n[5] Rice - 15.00\n[6] Softdrinks - 12.00\n[x]Check out and Payment\n\nEnter menu # of  your choice: ");

                select = Console.ReadLine();

                if (select.Equals("1"))

                {

                    karekare = 20.00d;

                    total += karekare;

                    kare = "You chose: 1\n";

                    tots += kare;

                }

                else if (select.Equals("2"))

                {

                    ginataan = 15.00d;

                    total += ginataan;

                    gina = "You chose: 2\n";

                    tots += gina;

                }

                else if (select.Equals("3"))

                {

                    humba = 45.00d;

                    total += humba;

                    hum = "You chose: 3\n";

                    tots += hum;

                }

                else if (select.Equals("4"))

                {

                    mangga = 35.00d;

                    total += mangga;

                    man = "You chose: 4\n";

                    tots += man;

                }

                else if (select.Equals("5"))

                {

                    rice = 10.00d;

                    total += rice;

                    ric = "You chose: 5\n";

                    tots += ric;

                }

                else if (select.Equals("6"))

                {

                    softdrinks = 12.00d;

                    total += softdrinks;

                    soft = "You chose: 6\n";

                    tots += soft;

                }

                else if (select != "x")

                {

                    Console.WriteLine("\n\nInvalid Input!!!\nPlease select the following");

                }

            }while(select != "x");

                Console.Write("\n\nOrder History:\n{0}\n\n", tots);

                while(back = true){

                Console.Write("Please pay {0}\n", total);

                Console.Write("Enter cash: ");

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

                if(cash >= total){

                    change = cash - total;

                     Console.WriteLine("Your change is {0}",change);

                     Console.ReadKey(back = false);

                     break;

                }

                else

                {

                    Console.Write("Invalid Amount!\n\n");

                    back = true;

                }

                }

        }

    }

}