#include <bits/stdc++.h>
using namespace std;

int main() {
    int A, B;
    cin >> A >> B;
    for (int i = A; i <= B; i++) {
        bool flag = false;
        int x = i;
        while (x) {
            if (x % 10 == 3)
                flag = true;
            x /= 10;
        }
        if (i % 3 == 0)
            flag = true;
        if (flag)
            cout << i << endl;
    }
}