using System;

using System.Collections.Generic;

using Newtonsoft.Json;

using System.Xml;

public class Program

{

    public static void Main()

    {

         string s = "appid:edd8f277ed4d41ad922dcc8e3da5bf7a";

        string b = s.Replace("appid:", "");

​

        Console.WriteLine(b);

    }

}

​

​