#include <iostream>
#include <vector>
using namespace std;

int main() {
    
    int a,b;
    vector<int> ans;
    cin >> a >> b;
    
    for(int i = a; i < b; i++){
        if(i/10 == 3 || i%10 == 3 || i%3 == 0){
            //cout << i << "\n";
            ans.push_back(i);
        }
    }
    for(int i = 0; i < ans.size(); i++){
        cout << ans[i] << "\n";
    }
    return 0;
}