#include <string>
#include <iostream>
#include <vector>

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 if (i / 10 % 10 == 3 || i %10 == 3)
		{
			cout << i << endl;
		}
	}

	return 0;
}