#Question 1 def extra_end(str): Given a string str of length 3 or longer, return a string made of 4 copies of the last three characters of str. #insert your code here # test cases to try out print(extra_end("Algebra")) # should print brabrabrabra print(extra_end("Cow")) # should print CowCowCowCow print(extra_end("Python")) # should print honhonhonhon 1. [1] Given a string str of length 3 or longer, return a string made of 4 copies of the last three characters of str