#include <iostream>

using namespace std;

int main() {
    int a, b;
    cin >> a >> b;
    for (int i = a; i <= b; i++) {
        int tmp = i;
        if (tmp%3 == 0) {
            cout << i << endl;
            continue;
        }
        while(1) {
            if (tmp % 10 == 3) {
                cout << i << endl;
                break;
            }
            if (!(tmp = tmp/10)) {
                break;
            }
        }
    }
    return 0;
}