class ListNode:
    def __init__(self, x):
        self.val = x
        self.next = None
#
# 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
#
# 
# @param head ListNode类 the head
# @return bool布尔型
#
class Solution:
    def isPail(self , head: ListNode) -> bool:
        lst = []
        cur = head
        while cur:
            lst.append(cur.val)
            cur = cur.next
        lst1 = lst[::-1]
        if lst1 == lst:
            return True
        else:
            return False