#include <iostream>
#include <string>

using namespace std;

int main() {
	int x, y;

	string s;

	cin >> x >> y;

	for (;x <= y; x++) {

		s = to_string(x);

		if (x % 3 == 0) {
			cout << x << endl;
			continue;
		}
		else if (s.find("3") != string::npos) {
			cout << x << endl;
			continue;
		}

	}
	return 0;
}