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: fvflflvfvl

A: lvfvl
****
Q: ukuukmmkuu

A: uukmmkuu
****
Q: jjjjjgrrjrjg

A:
jjjjj
****