using System;
using System.Text.RegularExpressions;

public class Example
{
    public static void Main()
    {
        string input = @"ThisIsAnExample.TitleHELLO-WORLD2019T.E.S.T.(Test)""Test""'Test'[Test]";
        Regex regex = new Regex(@"(?<!^|[A-Z\p{P}])[A-Z]|(?<=\p{P})\p{P}", RegexOptions.Multiline);
        Console.WriteLine(regex.Replace(input, @" $0"));
    }
}