Palindrome Number

Easy

Given an integer n, return true if it is a palindrome (reads the same backward as forward). Negative numbers are not palindromes.

Example 1

Input:  n = 121
Output: true

Example 2

Input:  n = -121
Output: false

Example 3

Input:  n = 10
Output: false

Constraints

• -2^31 <= n <= 2^31 - 1