using System;
using System.Linq;

namespace CSharpExercises.Exercises.LINQ
{
    class ReplaceSubstringTask
    {
        public static void Main()
        {
            var words = new[] { "near", "speak", "tonight", "weapon", "customer", "deal", "lawyer" };

            var modifiedWords = words.Select(w => w.Contains("ea") ? w.Replace("ea", "*") : w);

            foreach(var word in modifiedWords)
            {
                Console.Write(word + " "); // n*r sp*k tonight w*pon customer d*l lawyer
            }
        }
    }
}