#include <iostream>
using namespace std;
                                                                                                
  
int main(){


    long long a, b, i, t;


    cin >> a >> b;


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

        t = i;

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

        else while( t > 0 ){

                    if( t % 10 == 3 ){

                        cout << i << endl;

                        break;

                        }

                    t = t / 10;

                    }

        }
                                            

    return 0;

}