using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

     static void Main()

    {

        List<Item> items = GetListOfItems();

​

        if (items.Any())

        {

            var oldestRecords = items.OrderBy(item => item.Timestamp).Take(10);

​

            foreach (var record in oldestRecords)

            {

                Console.WriteLine($"Timestamp: {record.Timestamp}");

            }

        }

        else

        {

            Console.WriteLine("The list is empty.");

        }

    }

​

    // Example class representing an item with a timestamp

    public class Item

    {

        public DateTime Timestamp { get; set; }

        // Other properties

    }

​

    // Function to create a sample list of items

    static List<Item> GetListOfItems()

    {

        // This is just an example, you may have your own list

        List<Item> items = new List<Item>

        {

            new Item { Timestamp = DateTime.Now.AddDays(-5) },

            new Item { Timestamp = DateTime.Now.AddDays(-10) },

            new Item { Timestamp = DateTime.Now.AddDays(-2) },

            new Item { Timestamp = DateTime.Now.AddDays(-5) },

            new Item { Timestamp = DateTime.Now.AddDays(-10) },

            new Item { Timestamp = DateTime.Now.AddDays(-2) },

            new Item { Timestamp = DateTime.Now.AddDays(-5) },

            new Item { Timestamp = DateTime.Now.AddDays(-10) },

            new Item { Timestamp = DateTime.Now.AddDays(-2) },

            new Item { Timestamp = DateTime.Now.AddDays(-5) },

            new Item { Timestamp = DateTime.Now.AddDays(-10) },

            new Item { Timestamp = DateTime.Now.AddDays(-2) },

        };

        return items;

    }

}