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: rrrjjmmrmrm

A: mrmrm
****
Q: iliiiiiiilili

A: iliiiiiiili
****
Q: vvbabvavvab

A:
vbabv
****