public class MyClass {
    public static void main(String args[]) {
        java.util.Scanner scanner = new java.util.Scanner(System.in);
        double money = Double.parseDouble(scanner.next());
        int year = scanner.nextInt();

        for (int i = 0; i <= (year - 1800); i++) {
            if (i % 2 == 0) {
                money -= 12000;
            } else {
                money -= (12000 + ((18+i) * 50));
            }
        }
        if (money >= 0) {
            System.out.printf("Yes! He will live a carefree life and will have %.2f dollars left.", money);
        } else {
            System.out.printf("He will need %.2f dollars to survive.", Math.abs(money));
        }
    }
}