#include<iostream>
#include<string>
using namespace std;
int main() {
	int A, B;
	cin >> A >> B;
	for (int i = A; i <= B; i++) {
		if (i % 3 == 0) {
			cout << i << "\n";
		}else{
			string str = to_string(i);
			if (str.find('3') != string::npos) {
				cout << i << "\n";
			}
		}

	}
	return 0;
}