05.More.Exercises.For.Loop-01.Back.to.the.Past

using System;

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

            double moneyOddYear = 0;
            double moneyEvenYear = 0;
            double totalMoney = 0;

            int yearsOld = 18;

            for (int i = 1800; i <= year; i++)
            {
                if (i % 2 == 0)
                {
                    moneyEvenYear += 12000;
                }
                else
                {
                    moneyOddYear += 12000 + 50 * yearsOld;
                }

                yearsOld++;
                totalMoney = moneyEvenYear + moneyOddYear;
            }


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