using System;

using System.Linq;

using System.Collections.Generic;       

​

public class Program

{

    public static void Main()

    {

        IList<int> intList = new List<int>(){ 10, 21, 30, 45, 50 };

​

        var totalElements = intList.Count();

        Console.WriteLine("Total Elements: {0}", totalElements);

        var evenElements = intList.Count(i => i%2 == 0);

        Console.WriteLine("Even Elements: {0}", evenElements);

    }

}