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

namespace BackToThePast
{
    class Program
    {
        static void Main(string[] args)
        {
            decimal ost = decimal.Parse(Console.ReadLine());
            uint godina = uint.Parse(Console.ReadLine());
            //while (godina<1801|| godina > 1900) {  godina = uint.Parse(Console.ReadLine()); }
            uint count = 18u;
            for (uint i = 1800; i<= godina; i++)
            {
                if (i % 2 == 0)
                {
                    ost -= 12000;
                }
                else
                {
                    ost -= (12000 + 50 * (decimal)count);
                    //Console.WriteLine(count);
                    //Console.WriteLine((decimal)count);
                }
                count++;
            }
            if (ost < 0)
            {
                Console.WriteLine("He will need {0:F2} dollars to survive.", Math.Abs(ost));
            }
            else
            {
                Console.WriteLine("Yes! He will live a carefree life and will have {0:F2} dollars left.",ost);
            }
        }
    }
}