8.7 Searching Exercises

• Write an interactive function that searches for a string. If the search finds the string, leave point after it and display a message that says “Found!”. (Do not use search-forward for the name of this function; if you do, you will overwrite the existing version of search-forward that comes with Emacs. Use a name such as test-search instead.)
• Write a function that prints the third element of the kill ring in the echo area, if any; if the kill ring does not contain a third element, print an appropriate message.