using System;
using System.Text.RegularExpressions;

public class Test {
	public static void Main() {
		// your code goes here
		var regex = new Regex(@"![\P{Cc}\P{Cn}\P{Cs}]");
		var matches = regex.Matches("Hello, World!" + (char)4);
		Console.WriteLine("Results: " + matches.Count);
		foreach (Match match in matches) {
			Console.WriteLine("Result: " + match);
		}
	}
}