#include "iostream"
using namespace std;

int A, B;
int num;

int main() {
	cin >> A >> B;
	for (int i = A; i <= B; i++) {
		if (i % 3 == 0)cout << i << "\n";
		else {
			num = i;
			while (num != 0) {
				if (num % 10 == 3) {
					cout << i << "\n";
					break;
				}
				num /= 10;
			}
		}
	}
	return 0;
}