using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
string str = "1) chicken burger </br> 2)Chips </br> 3) xyz </br>";
string result = Regex.Replace(str, @"^\d+\)\s*|\s*<[^<>]*>$|\d+\)|<[^<>]*>", "");
string ou = Regex.Replace(result, @"\s{2,}", ",");
Console.WriteLine(ou);
Console.ReadLine();
}
}
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