#include <iostream>
#include <string>


bool include_three(int num) {
	std::string num_str(std::to_string(num));
	return (num_str.find("3") != std::string::npos);
}

int main(int argc, char *argv[]) {
	int start_num = 0;
	int end_num = 0;

	std::cin >> start_num;
	std::cin >> end_num;

	for (int i = start_num; i <= end_num; i++) {
		if ((i % 3 == 0) or include_three(i)) {
			std::cout << i << std::endl;
		}
	}

	return 0;
}