using System;
using System.Linq;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
string str = "ghjghjx12klkl122klkl1x33kl0k0l789x2xx6";
// ^^^ ^^^ ^^ ^^
Match match = Regex.Match(str, @"^(?:x(\d+)|\w)+$");
foreach (Capture x in match.Groups[1].Captures)
Console.WriteLine(x.Value);
}
}
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