using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string[] hausnummern = {"27a-29", "10-11B", "5", "5a", "10b", "200d", "23c", "256", "184a - 186c", "98 b - "};

        WriteMatches(hausnummern);

    }

    public static void WriteMatches(string[] inputs){

        foreach(var input in inputs){

        var hn = input.Replace(" ", "");

        var matches = Regex.Match(hn, @"([1-9][0-9]{0,3})?([a-zA-Z])?(\s*-\s*)?([1-9]{0,4})?([a-zA-Z])?").Groups;

        Console.WriteLine("HN: "+ hn);

        for(var i = 1; i<matches.Count; i++){

            var match = matches[i].ToString();

            var gruppenname = i == 1 ? "Hausnummer von" : i == 2 ? "Ergänzung von" : i == 3 ? " - " : i == 4 ? "Hausnummer bis" : "Ergänzung bis";

        Console.WriteLine("    match[" + i + "] (" + gruppenname + "): " + match);

        }

        }

    }

}