using System;

public class Program

{

    public static void Main()

    {

    /*

    Write a C# program that adds a comma whenever the word pickled is used.

​

    Start with these 4 sentences:

    Peter Piper picked a peck of pickled peppers.

    A peck of pickled peppers Peter Piper picked.

    If Peter Piper picked a peck of pickled peppers,

    Where's the peck of pickled peppers Peter Piper picked?

​

    Output  (it is okay that it is no longer grammatically correct):

​

    Peter Piper picked, a peck of pickled, peppers.

    A peck of pickled, peppers Peter Piper picked.

    If Peter Piper picked a peck of pickled, peppers,

    Where's the peck of pickled, peppers Peter Piper picked?

    */

        string a = "Peter Piper picked a peck of pickled peppers.\nA peck of pickled peppers Peter Piper picked.\nIf Peter Piper picked a peck of pickled peppers,\nWhere's the peck of pickled peppers Peter Piper picked?";

        a = a.Replace("pickled", "pickled,");

        Console.WriteLine(a);

    }

}