In this task you will be given a string and you should find the longest substring that is a palindrome. A palindrome is a string that is the same backwards as it is forwards. If the shortest possible palindrome is length 1 you should return the first character.

Q: ccuuuffffucccf

A: uffffu
****
Q: luloouolouu

A: uolou
****
Q: jjvrvvjrvr

A:
vrv
****