using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;
using System.Globalization;

public class Test
{
	private static bool IsSurrogate(string symbol)
    {
        return char.IsSurrogatePair(symbol, 0);
    }
	public static void Main()
	{
		Dictionary<UnicodeCategory, IGrouping<UnicodeCategory, string>> charInfo = (
		      Enumerable.Range(0, 0x110000)
		          .Where  (x => (x < 0x00D800 || x > 0x00DFFF))
		          .Select (Char.ConvertFromUtf32)
		          .GroupBy(s => Char.GetUnicodeCategory(s, 0))
		          .ToDictionary(g => g.Key)
		);
		
		// Get all number unicode groups:
		string[] Nd = charInfo[UnicodeCategory.DecimalDigitNumber].ToArray();
		string[] Nl = charInfo[UnicodeCategory.LetterNumber      ].ToArray();
		string[] No = charInfo[UnicodeCategory.OtherNumber       ].ToArray();
		//Console.WriteLine(string.Join("", Nd));
		string[] N = Nd.Union(Nl).Union(No).ToArray();
		
		foreach (var symbol in N)
        {
        	if (!Regex.IsMatch(symbol, @"\p{N}"))
        	{
				var chrs = symbol.ToCharArray();
                var hex = string.Concat(chrs.Select(x => string.Format(@"\u{0:x4}", (int)x)));
	            Console.WriteLine($"{symbol}\t{hex}\t{char.IsSurrogatePair(symbol, 0)}");
        	}
        }
	}
}