using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string test = "(a b)";

            char[] splitchars = new char[] {' ', '(', ')'};

            string[] splitted = test.Split(splitchars, StringSplitOptions.RemoveEmptyEntries);

            Console.WriteLine(splitted.Length);

            for (int i = 0; i < splitted.Length; i++)
                Console.WriteLine(splitted[i]);

            Console.ReadLine();
        }
    }
}