#include <iostream>
#include <string>

int main(){
	int a, b;
	std::cin >> a >> b;
	for (int i = a; i <= b; ++i){
		std::string s = std::to_string(i);
		bool f = false;
		for (int j = 0; j < s.size(); ++j){
			if (s[j] == '3')f = true;
		}
		if (f || i % 3 == 0)std::cout << i << std::endl;
	}
	return 0;
}