#include <iostream>

using namespace std;
using LL = long long;

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

    for (LL i = A; i <= B; i++) {
        if (i % 3 == 0) {
            cout << i << endl;
            continue;
        }
        LL j = i;
        while (j) {
            if (j % 10 == 3) {
                cout << i << endl;
                break;
            }
            j /= 10;
        }
    }
}