2016_July_17_2016 Back to the past

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

namespace Back_To_The_Past
{
    class Program
    {
        static void Main(string[] args)
        {
            var xMoney = double.Parse(Console.ReadLine());
            int nYear = int.Parse(Console.ReadLine());
            var year = 18;

            for (int i = 1800; i <= nYear; i++)
            {
                if (i%2==0)
                {
                xMoney -= 12000;
                }
                else
                {
                xMoney -= (12000 + 50*year);
                }
                   year++;
            }

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