#include <iostream>
#include <string>
using namespace std;

bool existThree(int n) {
	while(n > 0) {
		if(n % 10 == 3) return true;
		n /= 10;
	}
	return false;
}

int main() {
	int a, b;
	cin >> a >> b;
	for(; a<=b; ++a) {
		if(a % 3 == 0 || existThree(a)) {
			cout << a << endl;
		}
	}
	return 0;
}