public class Solution {
    /**
     * 
     * @param x int整型 
     * @return bool布尔型
     */
    public boolean isPalindrome (int x) {
        if(x < 0){
            return false;
        }
        // write code here
        char[] data = String.valueOf(x).toCharArray();
        int left = 0;
        int right = data.length - 1;
        while(left < right){
            if(data[left] == data[right]){
                left ++;
                right --;
            }else{
                return false;
            }
        }
        return true;
    }
}