#include <bits/stdc++.h>

using namespace std;

bool isOK(long long n) {
    if (n % 3 == 0) return true;

    while (n > 0) {
        if (n % 10 == 3) return true;
        n /= 10;
    }
    return false;
}

int main() {
    long long a, b;
    cin >> a >> b;

    for (int i = a; i <= b; ++i) {
        if (isOK(i)) cout << i << endl;
    }
    return 0;
}