#include <iostream>
#include <algorithm>
#include <string>
using namespace std;
int main(void) {
	int a, b;
	cin >> a >> b;
	while (a <= b) {
		if (a % 3 == 0) {
			cout << a << endl;
		}
		else {
			string s = to_string(a);
			if (s.find('3') != std::string::npos)
				cout << a << endl;
		}
		++a;
	}
	return 0;
}