using System;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		string[] strings = { "File name without 3 digit end.jpg",
                " Test",
                " Test (1)",
                " Test (1) (2)",
                " Test (123) (232)"};

        foreach (String s in strings)
        {
            Console.WriteLine(Regex.Replace(s, @"^(.*) \(\d+\)", "$1"));
        }
	}
}