using System;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine(char.IsSymbol('*'));

        int ctr = 0;

      UnicodeCategory category = UnicodeCategory.MathSymbol;

​

      for (ushort codePoint = 0; codePoint < ushort.MaxValue; codePoint++) {

         Char ch = Convert.ToChar(codePoint);

​

         if (CharUnicodeInfo.GetUnicodeCategory(ch) == category) {

            if (ctr % 5 == 0)

               Console.WriteLine();

            Console.Write("{0} (U+{1:X4})     ", ch, codePoint);

            ctr++;

         } 

      }

      Console.WriteLine();

      Console.WriteLine("\n{0} characters are in the {1:G} category", 

                        ctr, category);   

    }

}