#include <iostream>

using namespace std;

static void setup()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
}

static void run()
{
    int a, b;
    cin >> a >> b;

    for (auto n = a; n <= b; ++n) {
        if ((n % 3) != 0) {
            auto r = n;
            for (; r > 0 && (r % 10) != 3; r /= 10);

            if (r == 0) continue;
        }

        cout << n << endl;
    }
}

int main(int argc, char **argv)
{
    setup();
    run();
    return 0;
}