#include <iostream>

bool is_include(const int &n) {
	if (n == 0) {
		return false;
	}
	else if (n % 10 == 3) {
		return true;
	}
	else {
		return is_include(n / 10);
	}
}
int main() {
	int a, b;
	std::cin >> a >> b;
	for (auto i = a; i <= b; ++i) {
		if (i % 3 == 0 || is_include(i)) {
			std::cout << i << '\n';
		}
	}
}