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

namespace timeTraveling_for_more_
{
    class Program
    {
        static void Main(string[] args)
        {
            double heritage = double.Parse(Console.ReadLine());
            int year = int.Parse(Console.ReadLine());
            int yearCout = 17;

            for (int i = 1800; i <= year; i++)
            {

                if (i % 2 == 0)
                {

                    heritage -= 12000;
                }

                else
                {
                    yearCout +=2;
                    heritage -= 12000 + (50 * yearCout);
                }
            }

            if (heritage > 0)
            {
                Console.WriteLine($"Yes! He will live a carefree life and will have {heritage:f2} dollars left.");
            }

            else
            {
                Console.WriteLine($"He will need {Math.Abs(heritage):f2} dollars to survive.");
            }
        }
    }
}