#include<iostream>
#include<string>
#include<algorithm>

int main() {
	int start, end;

	std::cin >> start >> end;

	while (start <= end) {
		if (start % 3 == 0) std::cout << start << std::endl;
		else {
			int num = start;
			while (num != 0) {
				if (num % 10 == 3) {
					std::cout << start << std::endl;
					break;
				}
				num /= 10;
			}
		}
		start++;
	}

	return 0;
}