
# Given a singly linked list, determine if it is a palindrome.
# https://leetcode.com/problems/palindrome-linked-list/


# Definition for singly-linked list.
class ListNode(object):
    def __init__(self, x):
        self.val = x
        self.next = None

class Solution(object):
    def isPalindrome(self, head: ListNode) -> bool:
        pass
