nzbrat

using System;

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