#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>
#include <array>
#include <map>
#include <stack>
#include <queue>
#include <set>

using namespace std;

bool haveThree(long x) {

    while (x != 0) {
        if (x % 10 == 3) {
            return true;
        }
        x = x / 10;
    }

    return false;
}

int main() {

    long A, B;
    cin >> A >> B;

    for (long i = A; i <= B; ++i) {

        if (i % 3 == 0 or haveThree(i)) {
            cout << i << "\n";
        }
    }

}