Safari

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double budget = Double.parseDouble(scanner.nextLine()),
                fuel = Double.parseDouble(scanner.nextLine()),
                sum = 2.10 * fuel + 100;
        String day = scanner.nextLine();

        if (day.equals("Saturday")) {
            sum *= 0.90;
        } else {
            sum *= 0.80;
        }

        if (budget >= sum) {
            System.out.printf("Safari time! Money left: %.2f lv.\n", budget - sum);
        } else {
            System.out.printf("Not enough money! Money needed: %.2f lv.\n", sum - budget);
        }
    }
}