using System;

using System.Collections.Generic;

​

public class Program

{

    static void Main(string[] args)

    {

        static IEnumerable<int> Trial(int start, int end)

        {

            for(int i = start; i < end; i++)

            {

                if(i % 2 == 0)

                {

                    yield return i;

                }

            }

        }

        foreach(int x in Trial(0,45))

        {

            Console.WriteLine($"this is the value of x: {x}");      

        }

    }

}