#3SymmetricNumbers

import java.util.Scanner;

public class SymmetricNumbersInRange {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int start = scan.nextInt();
        int end = scan.nextInt();
        for (int i = start; i <= end; i++) {
            char[] charArray = Integer.toString(i).toCharArray();
            if (Integer.toString(i).equals(new StringBuilder(Integer.toString(i)).reverse().toString())){
                printResult(i);
            }
        }
    }

    private static void printResult(int i) {
        System.out.println(i);
    }
}