import java.util.Scanner;

public class DemoForBackToThePast {

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


        double money = Double.parseDouble(scanner.nextLine());
        int endYear = Integer.parseInt(scanner.nextLine());

        int countEvevnYear = 0;
        int countOddYear = 0;

        int ivanchoYear = 17;

        for (int i = 1800; i <= endYear; i++) {
            ivanchoYear++;

            if (i % 2 != 0) {
                countOddYear += 12000 + (ivanchoYear * 50);


            } else {
                countEvevnYear += +12000;
            }


        }

        int expense = countEvevnYear + countOddYear;

        if (money > expense) {

            System.out.printf("Yes! He will live a carefree life and will have %.2f dollars left.", money - expense);
        } else {
            System.out.printf("He will need %.2f dollars to survive.", expense - money);
        }

    }
}