Given the task definition and input, reply with output. 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.

tcffccffccttcf

cffccffc
Given the task definition and input, reply with output. 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.

tcffccffccttcf

user
cffccffc
assistant
Given the task definition and input, reply with output. 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.

tcffccffccttcf

cffccffc