#include <iostream>	//cin, cout
#include <vector>	//vector
#include <algorithm> //sort,min,max
#include <string>	//string
#include <ios>		//fixed
#include <iomanip>	//setprecision
#include <utility> //swap
#include <cstdlib>	//abs(int)
#include <cmath>	//sqrt
#include <sstream>	//stringstream,getline
#include <cmath>	//ceil

using namespace std;

int main() {

	long long int A, B;
	cin >> A >> B;

	long long int temp = 0;

	for (long long int i = A; i <= B; i++) {
		temp = i;
		if (temp % 3 == 0) {
			cout << i << endl;
			continue;
		}
		while (temp >= 1) {
			if (temp % 10 == 3) {
				cout << i << endl;
				break;
			}
			temp = temp / 10;
		}
	}

	return 0;

}