using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _04.Back_To_The_Past
{
    class Program
    {
        static void Main(string[] args) // 18:15
        {
            decimal nasledsvo = decimal.Parse(Console.ReadLine());
            int yearOfLiveInclude = int.Parse(Console.ReadLine());
            int oldYearsIvan = 18;

            for (int i = 1800; i <= yearOfLiveInclude; i++)
            {
               if (i % 2 == 0)
                {
                   nasledsvo -= 12000;

                }
                else
                {
                    nasledsvo -=(12000 + (50 * oldYearsIvan));
                }

              oldYearsIvan += 1;
            }

            if (nasledsvo >= 0)
            {
                Console.WriteLine("Yes! He will live a carefree life and will have {0:f2} dollars left.", nasledsvo);
            }
            else
            {
                Console.WriteLine("He will need {0:f2} dollars to survive.", Math.Abs(nasledsvo));
            }
        }
    }
}