#include <iostream>
using namespace std;
int main(){
    int a, b;
    cin >> a >> b;
    for(int i = a;i<=b;i++){
        if(i % 3 == 0){
            cout << i << "\n";
        }else if(i % 10 == 3){
            cout << i << "\n";
        }else{
            int j = i;
            while((j / 10) != 0){
                if(j / 10 == 3){
                    cout << i << "\n";
                    break;
                }else{
                    j /= 10;
                }
            }
        }
    }
}