#include<iostream>
#include<string>
using namespace std;
int main() {
	int A, B;
	int num;
	cin >> A >> B;
	for (int i = A; i <= B; i++) {
		if (i % 3 == 0) {
			cout << i << endl;
		}
		else {
			num = i;
			while (num > 0) {
				if (num % 10 == 3) {
					cout << i << endl;
					break;
				}
				else {
					num /= 10;
				}
			}
		}
	}

	return 0;
}