#include <bits/stdc++.h>
using namespace std;

bool ok(int s) {
    if (s%3 == 0) {
        return true;
    }

    while (s) {
        if (s%10 == 3) {
            return true;
        }
        s /= 10;
    }

    return false;
}

int main() {
    int A, B;
    cin >> A >> B;

    for (int i = A; i <= B; ++i) {
        if (ok(i)) {
            cout << i << endl;
        }
    }
}