#include <iostream>
using namespace std;
int main() {
    long a, b;
    int i, t;
    cin >> a >> b;
    for (i = a; i < b + 1; i++) {
    	t = i;
        if (i % 3 == 0) {cout << i << endl;}
        else {
            while (t > 0) {
                if (t % 10 == 3) {cout << i << endl; break;}
                t /= 10;
            }
        }
    }
    return 0;
}