using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        string name = "Name Here";

            if (string.IsNullOrWhiteSpace(name)) name = "N/A";

            var nameItems = name.Split(' ', StringSplitOptions.RemoveEmptyEntries).ToList();

            if (nameItems.Count == 1) nameItems.Add("N/A");

            var lastName = nameItems.Last();

            var firstName = string.Join(' ', nameItems.Take(nameItems.Count - 1));

        Console.WriteLine($"First: {firstName}");

        Console.WriteLine($"Last: {lastName}");

    }

}