using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
string hrefValue = "http://g...content-available-to-author-only...s.com/Pages/Card/Details.aspx?multiverseid=85808&part=Boseiju%2c+Who+Shelters+All";
string id = Regex.Match(hrefValue, @"id=(\d+)").Groups[1].Value;
Console.WriteLine(id);
}
}
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