using System;

public class Program

{

    public static void Main()

    {

        String[] peopleAll = new String[] { "Antoine", "Rodrigo", "Jane", "Paul", "Grey", "Marcus", "Theophilus", "Keje" };

        String[] people35 = peopleAll[1..3];

        String[] people_31 = peopleAll[^3..^1];

        String people_1 = peopleAll[^1];

​

        foreach (var person in people35)

            Console.WriteLine(person);

        Console.WriteLine();

        foreach (var person in people_31)

            Console.WriteLine(person);

        Console.WriteLine();

​

        Console.WriteLine(people_1);

        Console.WriteLine();

​

        Console.WriteLine(ConvertDate("2010-08-19"));

        Console.WriteLine(ConvertDateTime("2023-11-18 14:21:35"));

    }

    public static DateTime ConvertDate(String date)

    {

        Range rDate = ..4, rMonth = 5..7, rDay = 8..10;

        return new DateTime(int.Parse(date[rDate]), int.Parse(date[rMonth]), int.Parse(date[rDay]));

    }

    public static DateTime ConvertDateTime(String date)

    {

        Range rDate = ..4, rMonth = 5..7, rDay = 8..10;

        Range rHour = 11..13, rMin = 14..16, rSec = 17..19;

        return new DateTime(int.Parse(date[rDate]), int.Parse(date[rMonth]), int.Parse(date[rDay]),

                            int.Parse(date[rHour]), int.Parse(date[rMin]), int.Parse(date[rSec]));

    }

}