using System;

using System.Linq;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string Name = "ИП Горбатовский Е. Г.";

        string FullName = "ИП Горбатовский Евгений Геннадьевич";

        Console.WriteLine(GetNames(Name, FullName).Lastname + " " + GetNames(Name, FullName).Firstname);

    }

    public static (string Firstname, string Lastname) GetNames(string dbName, string dbFullName)

    {

        (string Firstname, string Lastname) result = (string.Empty, string.Empty);

        string Firstname = string.Empty;

        string Surname = string.Empty;

        string tempStrResult = string.Empty;

        string pattern = @"(?:(?:\p{Lu}\p{Ll}+[ \t]){2}\p{Lu}\p{Ll}+|(?:\p{Lu}+[ \t]){2}\p{Lu}+)";

        Regex rg = new Regex(pattern);

        if (!string.IsNullOrEmpty(dbName))

        {

            MatchCollection matchesName = rg.Matches(dbName);

            if (matchesName.Count > 0)

            {

                foreach (Match match in matchesName)

                    tempStrResult = match.Value;

                if (!string.IsNullOrEmpty(tempStrResult))

                {

                    result.Lastname = tempStrResult.Split(" ")[0];

                    if (tempStrResult.Split(" ").Length > 1)

                        result.Firstname = tempStrResult.Split(" ")[1];

                }

            }

        }

        if (!string.IsNullOrEmpty(dbFullName) && string.IsNullOrEmpty(tempStrResult))

        {

            MatchCollection matchesFullName = rg.Matches(dbFullName);

            if (matchesFullName.Count > 0)

            {

                foreach (Match match in matchesFullName)

                    tempStrResult = match.Value;

                if (!string.IsNullOrEmpty(tempStrResult))

                {

                    result.Lastname = tempStrResult.Split(" ")[0];

                    if (tempStrResult.Split(" ").Length > 1)

                        result.Firstname = tempStrResult.Split(" ")[1];

                }

            }

        }

        return result;

    }

}