#include <iostream>
#include <string>
using namespace std;
int main() {
    long a, b, i, bef;
    cin >> a >> b;
    
    for (i=a; i<=b; i++) {
        if (i % 3 == 0 || i % 10 == 3) {
            cout << i << endl;
        } else {
            bef = i;
            while (bef /= 10) {
                if (bef % 10 == 3) {
                    cout << i << endl;
                    break;
                }
            }
        }
    }
    return 0;
}