02. Small Shop

/**
 * Project: Complex_Conditions - created by borkins on 2017-03-25.
 */

import java.util.Scanner;

public class _02_SmallShop
{
    public static void main(String[] args)
    {
        Scanner console = new Scanner(System.in);

        String product = console.nextLine().toLowerCase();
        String town = console.nextLine().toLowerCase();
        double quantity = Double.parseDouble(console.nextLine());

        double price = 0d;

        switch (product)
        {
            case "coffee":
                switch (town)
                {
                    case "sofia": price = 0.5; break;
                    case "plovdiv": price = 0.4; break;
                    case "varna": price = 0.45; break;
                }
                break;
            case "water":
                switch (town)
                {
                    case "sofia": price = 0.8; break;
                    case "plovdiv": price = 0.7; break;
                    case "varna": price = 0.7; break;
                }
                break;
            case "beer":
                switch (town)
                {
                    case "sofia": price = 1.20; break;
                    case "plovdiv": price = 1.15; break;
                    case "varna": price = 1.10; break;
                }
                break;
            case "sweets":
                switch (town)
                {
                    case "sofia": price = 1.45; break;
                    case "plovdiv": price = 1.30; break;
                    case "varna": price = 1.35; break;
                }
                break;
            case "peanuts":
                switch (town)
                {
                    case "sofia": price = 1.60; break;
                    case "plovdiv": price = 1.50; break;
                    case "varna": price = 1.55; break;
                }
                break;
        }
        System.out.println(quantity * price);
    }
}