#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>

using namespace std;


bool contain3(long long int n) {
    string s = to_string(n);
    for (int i = 0; i < s.size(); ++i) {

        if (s[i] == '3') {
            return true;
        }

    }
    return false;
}

int main() {

    long long int A, B;
    cin >> A >> B;
    for (long long int i = A; i <= B; ++i) {
        if (i % 3 == 0 || contain3(i)) {
            cout << i << endl;
        }
    }

    return 0;
}