#include <iostream>
using namespace std;

int main() {
	int ans = 0;
	int a, b;
	cin >> a >> b;
	int c = a / 10;

	for (int i = a; i <= b; i++) {
		if(a % 10 == 0)
			c = a / 10;
		int d = a - c * 10;
		if (!(a % 3 || c % 3 || d % 3))
			cout << a << endl;
	}
}