#include <bits/stdc++.h>
using namespace std;

int main() {
	int a, b, a1[9999], a2[9999], c = 0;
	cin >> a >> b;
	for (int i = a; i <= b; i++) {
		a1[i] = i / 100;
		a2[i] = i % 10;
		if (a1[i] == a2[i]) {
			cout << i << endl;
			c++;
		}
	}
	cout << c;
	return 0;
}