#include <algorithm>
#include <iostream>
#include <iomanip>
#include <map>
#include <numeric>
#include <set>
#include <sstream>
#include <string>
#include <vector>
#include <cmath>
using namespace std;

#define FOR(i,s,e) for (int i = int(s); i != int(e); i++)
#define FORIT(i,c) for (typeof((c).begin()) i = (c).begin(); i != (c).end(); i++)
#define ISEQ(c) (c).begin(), (c).end()

int main(){
	long A,B;

	cin >> A >> B;

	for(long i = A;i <= B;i++){
		if (i % 3 == 0) cout << i << endl;
		else{
			string s;
			stringstream ss;
			ss << i;
			s = ss.str();
			for (int j = 0;j < s.length();j++){
				if (s[j] == '3'){
					cout << i << endl;
					break;
				}
			}
		}
	}
	return 0;
}