using System;

​

public class wordJumbleIntro

{

    public static void main()

    {

        String letters = "OCYP";

        jumbleWords(letters, "");

    }

​

    //input parameters

    //word - the remaining letters in the word still to jumble

    //jumbLet - the letters already used to create

    //the jumbled word

    public static void jumbleWords(String word, String jumbLet)

    {

        int pos;

        String remainingLetters;

        String origWord = word;

        String origJumbledLetters = jumbLet;

        if (word.Length == 1)

        {

            Console.WriteLine(jumbLet + word);

        }

        else

        {

            for (pos = 0; pos < origWord.Length; pos++)

            {

                remainingLetters = origWord.Substring(0, pos) + origWord.Substring(pos + 1, origWord.Length);

                //recursive call to jumbleWords()

                jumbleWords(remainingLetters, origJumbledLetters + origWord.Substring(pos,1));

            }

        }

    }

}