using System;

using System.Linq;

using System.Text;

public class Program

{

    public static void Main()

    {

        string test(string text) {

            if (text?.Contains("/")==true)

                return text.Split("/").Last().Split("-").First();

            return text;

        }

        Console.WriteLine("1: " + test("SIP/136-002f26f7"));

        Console.WriteLine("2: " + test("109"));

    }

}