#include <iostream>
#include <algorithm>
#include <vector>
#include <deque>
#include <string>
#include <tuple>
#include <functional>
#include <numeric>
#include <cmath>
#include <iomanip>
#include <map>
#include <random>
//#include "toollib.h"
#define INT_MAX 2147483647
#define Loop(i, n) for(int i = 0; i < (int)n; i++)
#pragma warning (disable:4018)

using namespace std;
typedef long long int lint;

//***** Main Program *****

string int_to_string(int x, int radix) {
	int n = 0;
	if (x == 0) n = 1;
	else {
		int y = x;
		while (y > 0) {
			n++;
			y /= radix;
		}
	}
	string s;
	for (int i = n; i > 0; i--) {
		int y = (int)pow(radix, i - 1);
		int z = x / y;
		s.push_back('0' + z);
		x -= y*z;
	}
	return s;
}

int main() {
	int A, B;
	cin >> A >> B;
	for (int i = A; i <= B; i++) {
		if (i % 3 == 0) cout << i << endl;
		else {
			string s = int_to_string(i, 10);
			Loop(j, s.length()) {
				if (s[j] == '3') {
					cout << i << endl;
					break;
				}
			}
		}
	}
	return 0;
}