back to the past

using System;

namespace homeworkforloop
{
    class Program
    {
        static void Main(string[] args)
        {
            double inherit = double.Parse(Console.ReadLine());
            int year = int.Parse(Console.ReadLine());




            for (double i = 1800; i <= year; i++)
            {
                if (i % 2 == 0)
                {
                    inherit -= 12000;
                }
                else
                {
                    inherit -= (12000 + 50 * (i - 1782));
                }

            }

            if (inherit < 0)
            {
                Console.WriteLine($"He will need {Math.Abs(inherit):f2} dollars to survive.");
            }
            else
            {
                Console.WriteLine($"Yes! He will live a carefree life and will have {inherit:f2} dollars left.");
            }
        }
    }
}