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)
        {
            var money = double.Parse(Console.ReadLine());
            var year = int.Parse(Console.ReadLine());
            var age = 18;
            for (int i = 1800; i <= year; i++)
            {
                if (i % 2 == 0) money -= 12000;
                else money -= (12000 + 50 * age);
                age++;
            }
            if (money >= 0) Console.WriteLine("Yes! He will live a carefree life and will have {0:f2} dollars left.", money);
            else Console.WriteLine("He will need {0:f2} dollars to survive.",Math.Abs(money));
        }
    }
}