13. Ski Trip

import java.util.Scanner;

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

        int days = Integer.parseInt(scanner.nextLine());
        String room = scanner.nextLine();
        String grade = scanner.nextLine();

        int nights = days-1;
        double price = 0;

        switch (room){
            case"room for one person":
                price= nights*18;
                break;
            case "apartment":
                price=nights*25;
                if (days<10){
                    price=price*0.70;
                }else if (days>=10 && days<=15) {
                    price=price*0.65;
                }else{
                    price=price/2;
                }
                break;
            case "president apartment":
                price=nights*35;
                if (days<10){
                    price=price*0.90;
                }else if (days>=10 && days<=15) {
                    price=price*0.85;
                }else{
                    price=price*0.80;
                }
                break;
        }
        if (grade.equals("positive")){
            price=price*1.25;
        }else if (grade.equals("negative")){
            price=price*0.90;
        }
        System.out.printf("%.2f",price);
    }
}