using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var word = "az-za-gf";

        var list = new List<string>();

        var currentIndex = 0;

        while(true){

            var newIndex = word.IndexOf('-', currentIndex);

            list.Add(word.Substring(0, newIndex));

            //if(newIndex == -1) {

                break;

            //}

            currentIndex = newIndex;

        }

        Console.WriteLine(list);

    }

}