using System;

public class Program
{
	public static void Main()
	{

		decimal  moneyInTheBeginning=  decimal.Parse(Console.ReadLine());
		int year = int.Parse(Console.ReadLine());
		decimal leftOrShortageMoney = 0M;
		decimal money = moneyInTheBeginning;
		int yearsOld = 18;

		for(int i = 1800; i<=year; i++)
		{


			if(i % 2==0)
			{
				leftOrShortageMoney = money - 12000;
				money = leftOrShortageMoney;
			}
			else
			{
				leftOrShortageMoney = money - (12000 + 50 * yearsOld);
				money = leftOrShortageMoney;
			}
			yearsOld++;

		}

		if (leftOrShortageMoney >= 0)
			Console.WriteLine("Yes! He will live a carefree life and will have {0:f2} dollars left.", leftOrShortageMoney);
		else
		{

			Console.WriteLine("He will need {0:f2} dollars to survive.", Math.Abs(leftOrShortageMoney));

		}

	}
}