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

namespace _0_4_zad
{
    class Program
    {
        static void Main(string[] args)
        {
            double money  = double.Parse(Console.ReadLine());
            int year = int.Parse(Console.ReadLine());
            int count = 0;
            for (int i = 1800; i <= year; i++)
            {
                if (i % 2 == 0)
                { money = money - 12000;}

                 else if (i % 2 != 0)
                { money = money - (12000 + (50 * (18+count)));}
                count++;
            }
            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));
            }
        }
    }
}