Given an integer x, return true if x is palindrome integer. An integer is a palindrome when it reads the same backward as forward. • For example, 121 is a palindrome while 123 is not. 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. Constraints: • −2³1 <= x <= 2³1 - 1

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