using System;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            double heritage = double.Parse(Console.ReadLine());
            int year = int.Parse(Console.ReadLine());
            int ageIvancho = 18;

            for (int i = 1800; i <= year; i++)
            {
                if (i % 2 == 0)
                {
                    heritage -= 12000;
                }
                else
                {
                    heritage -= 12000 + (50 * ageIvancho);
                }
                ageIvancho++;
            }

            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.");
            }
        }
    }
}