System Globalization C# by API

using System;
    using System.Globalization;
  class Class1
  {
    static void Main(string[] args)
    {
      Calendar MyCalendar = new  GregorianCalendar();
      Console.WriteLine(MyCalendar.ToFourDigitYear(32));
      
        Console.WriteLine(MyCalendar.ToFourDigitYear(28));      
    }
  }