using System;

class Example
{
    public static void Main ()
    {
        double ownMoney = double.Parse (Console.ReadLine ());
        int year = int.Parse (Console.ReadLine ());

        int age = 17;

        for (int i = year; i >= 1800; i--)
        {
            age++;

            if (i % 2 == 0)
            {
                ownMoney -= 12000;
            }
            else
            {
                ownMoney -= 12000 + (50 * age);
            }
        }

        if (ownMoney >= 0)
        {
            Console.WriteLine ("Yes! He will live a carefree life and will have {0:F2} dollars left.", Math.Abs (ownMoney));
        }
        else
        {
            Console.WriteLine ("He will need {0:F2} dollars to survive.", Math.Abs (ownMoney));
        }
    }
}