using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        string s = "Parent, Step-Parent, Nanny 18+, Sibling 18+";

        string[] sary = s.Split(new []{','}, System.StringSplitOptions.RemoveEmptyEntries);

        List<string> slist = new List<string>();

        foreach(var a in sary)

        {

            slist.Add(a.Trim());

        }

        foreach (var s1 in slist)

        {

            Console.WriteLine(s1);

        }

    }

}