import java.util.Scanner;

public class Main{
	public static void main(String[] agrs){
	
	Scanner sc = new Scanner(System.in);

	int m = sc.nextInt();
	int n = sc.nextInt();
	int num = 0;
	for(int i = m;i <= n;i++){
		if(i / 100 == i % 10){
				System.out.println(i);
				num++;
		}
	
	}
	System.out.println(num);
	}
}



/**************************************************************
	Problem: 1742
	User: admin
	Language: Java
	Result: Accepted
	Time:698 ms
	Memory:40412 kb
****************************************************************/