Printing year by adding months and days in C#

C# will automatically look into months and days added to the input date and act correspondingly.

using System;

namespace forgetCode
{
    namespace forgetCode
    {
        class Program
        {
            static void Main(string[] args)
            {
                DateTime now = DateTime.Today;

                Console.WriteLine(now.ToString("yyyy"));

                DateTime then = now.AddMonths(12);

                Console.WriteLine(then.ToString("yyyy"));

                DateTime thenafter = then.AddDays(365);

                Console.WriteLine(thenafter.ToString("yyyy"));
            }

        }
    }
}


Output:
2012
2013
2014

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