Small shop

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("enter city:");
            string city =  Console.ReadLine().ToLower();
            Console.WriteLine("enter product:");
            string product = Console.ReadLine().ToLower();
            Console.WriteLine("enter quantity:");
            var quantity = double.Parse(Console.ReadLine());

            if (city == "sofia")

            {
                if (product == "coffee")
                    Console.WriteLine(0.50 * quantity);
                else if (product == "water") Console.WriteLine(0.80 * quantity);
                else if (product == "beer") Console.WriteLine(1.20 * quantity);
                else if (product == "sweets") Console.WriteLine(1.45 * quantity);
                else if (product == "peanuts") Console.WriteLine(1.60 * quantity);
                else
                    Console.WriteLine("sold out");
            }
            if (city == "plovdiv")

            {
                if (product == "coffee") Console.WriteLine(0.40 * quantity);
                else if (product == "water") Console.WriteLine(0.70 * quantity);
                else if (product == "beer") Console.WriteLine(1.15 * quantity);
                else if (product == "sweets") Console.WriteLine(1.30 * quantity);
                else if (product == "peanuts") Console.WriteLine(1.50 * quantity);
                else
                    Console.WriteLine(" this product has been sold out");

            }
            if (city== "varna")
            {
                if (product == "coffee")
                    Console.WriteLine(0.45 * quantity);
                else if (product == "water")
                    Console.WriteLine(0.70 * quantity);
                else if (product == "beer")
                    Console.WriteLine(1.10 * quantity);
                else if (product == "sweets")
                    Console.WriteLine(1.35 * quantity);
                else if (product == "peanuts")
                    Console.WriteLine(1.55 * quantity);
                else
                    Console.WriteLine(" this product has been sold out");
            }

            Console.ReadLine();
        }

    }
}