#include <iostream>

using namespace std;

int main() {
	int a, b;
	cin >> a >> b;
	for (int i = a; i <= b; ++i) {
		if (i % 3 == 0) {
			cout << i << endl;
		} else {
			for (int k = i; k > 0; k /= 10) {
				if (k % 10 == 3) {
					cout << i << endl;
					break;
				}
			}
		}
	}
	return 0;
}