#include <iostream>
#include <stdio.h>
#include <cmath>

#define FOR(i, a, b) for (int i = a; i < b; i++)
#define FORN(i, a, b) for (int i = a; i <= b; i++)

using namespace std;
//
// Created by karayuu on 2019-01-14.
//

int main() {
    int a, b;
    cin >> a >> b;

    FORN(i, a, b) {
        string s = to_string(i);
        FOR(j, 0, s.size()) {
            if (s[j] == '3') {
                cout << s << endl;
                break;
            } else if (i % 3 == 0) {
                cout << s << endl;
                break;
            }
        }
    }
}