BackToThePast

import java.util.Scanner;

public class BackToThePast {

	public static void main(String[] args) {

		 Scanner scan = new Scanner(System.in);
	        double heritage = Double.parseDouble(scan.nextLine());
	        int yearToLive = Integer.parseInt(scan.nextLine());
	        int years = 18;
	        for (int currentYear = 1800; currentYear <= yearToLive; currentYear++) {
	            if (currentYear % 2 == 0) {
	                heritage -= 12000;
	            } else heritage -= (12000 + 50 * years);
	            years++;
	        }
	        if (heritage < 0) {
	            System.out.printf("He will need %.2f dollars to survive.", Math.abs(heritage));
	        } else System.out.printf("Yes! He will live a carefree life and will have %.2f dollars left.", heritage);



	}

}