---

using System;
using System.Collections;
//using System.Linq;

internal class Program
{
    public class MyList : IEnumerable
    {
        internal string[] people = { "Tom", "Sam", "Bob" }; 

        public class MyEnumerator : IEnumerator
        {
            string[] people;
            int index = -1;
            public object Current => people[index];

            public MyEnumerator(MyList list)
            {
                this.people = new string[list.people.Length];
                for (int i = 0; i < list.people.Length; i++)
                {
                    this.people[i] = list.people[list.people.Length - 1 - i];
                }
                //this.people = list.people.Reverse().ToArray();
            }

            public bool MoveNext()
            {
                index++;
                return index < people.Length;
            }

            public void Reset()
            {
                index = -1;
            }
        }
        public IEnumerator GetEnumerator()
        {
            return new MyEnumerator(this);
        }
    }

    private static void Main(string[] args)
    {
        MyList people = new MyList();

        IEnumerator peopleEnumerator = people.GetEnumerator();
        while (peopleEnumerator.MoveNext())
        {
            string item = (string)peopleEnumerator.Current;
            Console.WriteLine(item);
        }
        peopleEnumerator.Reset();
    }
}