Small Shop

using System;

class Program
{

    static void Main(string[] args)
    {
        string product = Console.ReadLine();
        string city = Console.ReadLine();
        double quantity = double.Parse(Console.ReadLine());
        double price = 0;
        if(product=="coffee")
        {
            if(city=="Sofia")
            {
                price = 0.50 * quantity;
                Console.WriteLine(price);
            }
            else if(city=="Plovdiv")
            {
                price = 0.40 * quantity;
                Console.WriteLine(price);
            }
            else if(city=="Varna")
            {
                price = 0.45 * quantity;
                Console.WriteLine(price);
            }
        }
        else if(product=="water")
        {
            if (city == "Sofia")
            {
                price = 0.80 * quantity;
                Console.WriteLine(price);
            }
            else if (city == "Plovdiv" || city=="Varna")
            {
                price = 0.70 * quantity;
                Console.WriteLine(price);
            }
        }
        else if(product=="beer")
        {
            if (city == "Sofia")
            {
                price = 1.20 * quantity;
                Console.WriteLine(price);
            }
            else if (city == "Plovdiv")
            {
                price = 1.15 * quantity;
                Console.WriteLine(price);
            }
            else if (city == "Varna")
            {
                price = 1.10 * quantity;
                Console.WriteLine(price);
            }
        }
        else if(product=="sweets")
        {
            if (city == "Sofia")
            {
                price = 1.45 * quantity;
                Console.WriteLine(price);
            }
            else if (city == "Plovdiv")
            {
                price = 1.30 * quantity;
                Console.WriteLine(price);
            }
            else if (city == "Varna")
            {
                price = 1.35 * quantity;
                Console.WriteLine(price);
            }
        }
        else if(product=="peanuts")
        {
            if (city == "Sofia")
            {
                price = 1.60 * quantity;
                Console.WriteLine(price);
            }
            else if (city == "Plovdiv")
            {
                price = 1.50 * quantity;
                Console.WriteLine(price);
            }
            else if (city == "Varna")
            {
                price = 1.55 * quantity;
                Console.WriteLine(price);
            }
        }
    }
}