using System;
using System.Linq;
using System.Text.RegularExpressions;
 
namespace WindowsFormsApplication1
{
    static class Program
    {
 
        static void Main()
        {
            string s = "add(2,3,1),4";
 
            MatchCollection matches = Regex.Matches(Regex.Matches(s, @"\(.*?\)").Cast<Match>().First().ToString(), @"\d+");
            string[] result = matches.Cast<Match>()
                                     .Take(10)
                                     .Select(match => match.Value)
                                     .ToArray();
            foreach (string item in result)
            {
                Console.WriteLine(item);
            }
 
        }
    }
}
 

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