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.
--------
Question: rhhhrhbrrrb

Answer: rhhhr


Question: iiffppfipffipff

Answer: fppf


Question: pyppydddydp

Answer:
ydddy