Create a function that takes a string; we'll say that the front is the first three characters of the string. If the string length is less than three characters, the front is whatever is there. Return a new string, which is three copies of the front.
front3("Python") ➞ "PytPytPyt"
front3("Cucumber") ➞ "CucCucCuc"
front3("bioshock") ➞ "biobiobio"
Don't forget to return the result.