fruit shop

import java.util.Scanner;

public class FruitShop {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        String fruit = console.nextLine().toLowerCase();
        String day = console.nextLine().toLowerCase();
        double quantity = Double.parseDouble(console.nextLine());
        boolean isWeekDay = day.equals("monday") || day.equals("tuesday")
                || day.equals("wednesday") || day.equals("thursday") || day.equals("friday");
        boolean isWeekend = day.equals("saturday") || day.equals("sunday");
        double price = -1;

        if (isWeekend) {
            if (fruit.equals("banana")) {
                price = 2.70;
            } else if (fruit.equals("apple")) {
                price = 1.25;
            } else if (fruit.equals("orange")) {
                price = 0.90;
            } else if (fruit.equals("grapefruit")) {
                price = 1.60;
            } else if (fruit.equals("kiwi")) {
                price = 3.00;
            } else if (fruit.equals("pineapple")) {
                price = 5.60;
            } else if (fruit.equals("grapes")) {
                price = 4.20;
            } else {
                System.out.println("error");
            }
        } else if (isWeekDay) {
            if (fruit.equals("banana")) {
                price = 2.50;
            } else if (fruit.equals("apple")) {
                price = 1.20;
            } else if (fruit.equals("orange")) {
                price = 0.85;
            } else if (fruit.equals("grapefruit")) {
                price = 1.45;
            } else if (fruit.equals("kiwi")) {
                price = 2.70;
            } else if (fruit.equals("pineapple")) {
                price = 5.50;
            } else if (fruit.equals("grapes")) {
                price = 3.85;
            } else {
                System.out.println("error");
            }

            } if (price != -1) {
                System.out.println(price * quantity);
        }
    }
}