#include <bits/stdc++.h>
using namespace std;
using ill = int long long;
#define rep(i, n) for (ill i = 0; i < (n); i++)
#define all(s) s.begin(), s.end()
using inp = pair<int, int>;
using vecb = vector<bool>;
using vecb2 = vector<vecb>;

int main()
{
    int a, b;
    cin >> a >> b;
    while (a <= b)
    {
        string s = to_string(a);
        if (find(s.begin(), s.end(), '3') != s.end())
        {
            cout << a << endl;
        }
        else if (a % 3 == 0)
        {
            cout << a << endl;
        }
        a++;
    }
}