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.

[EX Q]: afamfmfaafff
[EX A]: faaf

[EX Q]: dnnddffdndfd
[EX A]: fdndf

[EX Q]: mddrmddrrd
[EX A]:
drrd