#include <iostream>
#include <string>

using namespace std;

int main(){

    int i , a , b , f;
    string str_i;

    cin >> a >> b ;

    for(i = a;i < b+1;i++){

        if(i % 3 == 0){
            cout << i << endl;
        }

    else {

        str_i = to_string(i);
        f = str_i.find("3");
    
    }

    if (i%3!=0 && f != -1){

        cout << i << endl;

    }

    }

    return 0;

}