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

int main() {
    int a, b;
    cin >> a >> b;
    
    auto f = [](int x) {
        if (x % 3 == 0) return true;
        string s = to_string(x);
        return (s.find("3") != string::npos);
    };
    
    for (int x = a; x <= b; x++) {
        if (f(x)) cout << x << '\n';
    }
    
    return 0;
}