Small shop

import java.util.Scanner;
import java.util.function.DoubleBinaryOperator;

public class BiggerNumber {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String product = scanner.nextLine();
        String town = scanner.nextLine();
        double quantity = Double.parseDouble(scanner.nextLine());

        switch (product) {
            case "coffee":
                if(town.equals("Sofia")){
                    System.out.println(quantity*0.50);
                }else if(town.equals("Plovdiv")){
                    System.out.println(quantity*0.40);
                }else if(town.equals("Varna")){
                    System.out.println(quantity*0.45);
                }
                break;
            case "water":
                if(town.equals("Sofia")){
                    System.out.println(quantity*0.80);
                }else if(town.equals("Plovdiv")){
                    System.out.println(quantity*0.70);
                }else if(town.equals("Varna")){
                    System.out.println(quantity*0.70);
                }
                break;
            case "beer":
                if(town.equals("Sofia")){
                    System.out.println(quantity*1.20);
                }else if(town.equals("Plovdiv")){
                    System.out.println(quantity*1.15);
                }else if(town.equals("Varna")){
                    System.out.println(quantity*1.10);
                }
                break;
            case "sweets":
                if(town.equals("Sofia")){
                    System.out.println(quantity*1.45);
                }else if(town.equals("Plovdiv")){
                    System.out.println(quantity*1.30);
                }else if(town.equals("Varna")){
                    System.out.println(quantity*1.35);
                }
                break;
            case "peanuts":
                if(town.equals("Sofia")){
                    System.out.println(quantity*1.60);
                }else if(town.equals("Plovdiv")){
                    System.out.println(quantity*1.50);
                }else if(town.equals("Varna")){
                    System.out.println(quantity*1.55);
                }
                break;
            default:
                System.out.println("unknown");
        }
    }
}