#include <iostream>
#include <vector>
#include <deque>
#include <stack>
#include <memory>
#include <functional>
#include <algorithm>
#include <map>
#include <list>
#include <complex>
#include <string>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <numeric>
#include <array>
using namespace std;
typedef std::pair<int, int> pii;
typedef long long int ll;

#define pb push_back

int main(){
	
	int A, B;
	std::vector<int> v;

	cin >> A >> B;

	for (int i = A; i <= B; ++i) {
		v.pb(i);
	}

	for (int i = 0; i < v.size(); ++i) {
		if(v[i]%3 == 0){
			std::cout << v[i] << std::endl;
			continue;
		}

		string s = to_string(v[i]);
		for (int j = 0; j < s.length(); ++j) {
			if(s[j] == '3'){
				std::cout << v[i] << std::endl;
				break;
			}
		}
	}



	return 0;
}