using System;

​

public class Program

{

    public static void Main()

    {

        string value = "x=21-bola,x=32-tony,x=43-adel";

        string[] arrayOfString = value.Split(",");

        foreach (string s in arrayOfString)

        {

            int startPosition = s.IndexOf("=") + 1;

            int endPosition = s.IndexOf("-");

            string output = s.Substring(startPosition, endPosition - startPosition);

            Console.WriteLine(output);

        }

    }

}