#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <iomanip>
using namespace std;
using ll = long long;

int main() {
    string A, B;
    cin >> A >> B;
    for(int i=stoi(A); i<=stoi(B); ++i) {
        if(to_string(i).find('3') != string::npos || i % 3 == 0) {
            cout << i << endl;
        }
    }
}