using System;
using Habrahabr;

namespace 256Day
{
   private static class Program
   {
        [STAThread]
        private static void Main(string[] args)
        {
            (from obj in Habrahabr.Programmers
             where obj.IsActive
             order by obj.FIO asceding
             select obj).ForEach(Congratulate);

            Console.ReadLine();
        }

        private static void ForEach<T>(this IEnumerable<T> collection, Action<T> action)
        {
            if((collection == null) || (action == null))
                return;

            foreach(var obj in collection)
                action(obj);
        }

        private static void Congratulate(Programmer programmer)
        {
            Console.WriteLine("{0}, congratulations!", programmer.FI);
        }
    }
}