import java.util.Scanner;

public class rrrr {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double money = Double.parseDouble(scanner.nextLine());
        int yearToLive = Integer.parseInt(scanner.nextLine());
        int ivancho = 19;
        double moneyToSpare = 0;


        for (int i = 1800; i <= yearToLive ; i++) {
            if(i % 2 == 0){
                moneyToSpare += 12000;
            }else{
                moneyToSpare += 12000 + (50 * ivancho++);
            }

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


    }
}