using System;
using System.Globalization;
using System.Linq;
using System.Collections.Generic;
 
public class Test
{
 
	public static void Main()
	{ 
         string data = "the stock overflow in very good website";
        IEnumerable<string> tokens = data.Split()
            .Select(w => string.Format("{0}...{1}", w
                , string.Join("...", w.Select(c => string.Format("{0}...", c)).ToArray())));
        string result = string.Join(" ", tokens.ToArray());
        Console.Write(result);
	}
}

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