Given an integer x, return true *if* x *is a* *palindrome**, and* false *otherwise*.
An integer is a palindrome when it reads the same backward as forward.
Examples
Example 1:
Input:x = 121
Output:true
Explanation:121 reads as 121 from left to right and from right to left.
Example 2:
Input:x = -121
Output:false
Explanation:From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.
Example 3:
Input:x = 10
Output:false
Explanation:Reads 01 from right to left. Therefore it is not a palindrome.