using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Globalization;
using System.Text.RegularExpressions;
using System.IO;
using System.Diagnostics;
using System.Net.Mail;
using System.Web;
 
namespace Enum
{
    class Program
    {
        static void Main(string[] args)
        {
            string result = "Overfishing, erosion and warmer waters are feeding jellyfish blooms in coastal regions worldwide. And they're causing damage";
            var array = result.Split(new string[] {",", ".", " "}, StringSplitOptions.RemoveEmptyEntries);
            foreach (var item in array)
	        {
                if(item.Length >= 4 && item.Length < 10)
        		 Console.WriteLine(item);
	        }
        }
    }
}
 

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