using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(\d+)\s\(\s(\d+)\s\)|(\d+)(?=\s\(\s(?:\d+\s\(\s\d+\s\)\s)+(\d+))";
string input = @"3 ( 16 ) 23 ( 24 ( 40 ) 50 ( 66 ) 76 ) 83 ( 88 ( 104 ) 127 )";
foreach (Match m in Regex.Matches(input, pattern))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx