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

int main()
{
    int a, b;
    cin >> a >> b;
    for (int i = a; i <= b; i++) {
        if (i % 3 == 0) {
            cout << i << endl;
        } else {
            int icopy = i;
            while (icopy > 0) {
                if (icopy % 10 == 3) {
                    cout << i << endl;
                    break;
                }
                icopy /= 10;
            }
        }
    }
}