Please solve the programming task below using a self-contained code snippet in a markdown code block.

Given an integer array queries and a positive integer intLength, return an array answer where answer[i] is either the queries[i]th smallest positive palindrome of length intLength or -1 if no such palindrome exists.
A palindrome is a number that reads the same backwards and forwards. Palindromes cannot have leading zeros.
 
Please complete the following python code precisely:
```python
class Solution:
    def kthPalindrome(self, queries: List[int], intLength: int) -> List[int]:
```