using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine($"Any()");

        Console.WriteLine(GetCollection().Any());

        Console.WriteLine($"");

        Console.WriteLine($"Count()");

        Console.WriteLine(GetCollection().Count() > 0);

    }

​

    private static IEnumerable<int> GetCollection()

    {

        for (int i = 0; i < 10; i++)

        {

            Console.WriteLine($"---- {i:00} ----");

            yield return i;

        }

    }

}