#include <iostream>
#include <string>
using namespace std;

int main() {
	string str1;
	int a, b;
	cin >> a >> b;

	for (int i = a; i <= b; i++) {
		str1 = to_string(i);
		if (i % 3 == 0 || str1.find('3') != string::npos) {
			cout << i << endl;
		}
	}
}