#include <iostream>
#include <string>
using namespace std;

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

    for (int i = A; i <= B; i++) {
        if (i % 3 == 0 || to_string(i).find("3") != string::npos) {
            cout << i << endl;
        }
    }
    
    return 0;
}