using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        List<int> test = new List<int>(){ 1};

        var result = test.Select(x => {

        Console.WriteLine("Select executed for " + x);

            return x;

        });

        result.All(x=> x%2 ==1);

        result.All(x=> x%2 ==1);

        result.All(x=> x%2 ==1);

        var result2 = result.ToList();

        Console.WriteLine("IEnumerable changed to List - logic should not be repeated.");

        result2.All(x=> x%2 ==1);

        result2.All(x=> x%2 ==1);

        result2.All(x=> x%2 ==1);

        Console.WriteLine("Hello World");

    }

}