#include <iostream>

using namespace std;

int main(int argc, const char* argv[])
{
	int A, B;
	cin >> A >> B;
	for (int i = 0; i <= B - A; i++) {
		int t = A + i;
		if (t % 3 == 0 || to_string(t).find("3") != -1) cout << t << endl;
	}
	return 0;
}