#include <iostream>
#include <list>
#include <vector>
#include <string>
#include <stdio.h>
#include <stdint.h>
using namespace std;

using uint = unsigned int;
using ll = long long;

#define CIN( LL , A ) LL A; cin >> A 
#define GETLINE( A ) string A; getline( cin , A ) 

int main()
{

  CIN( ll , A );
  CIN( ll , B );
  
  for( ll i = A ; i <= B ; i++ ){

    bool b = false;

    if( i % 3 == 0 ){

      b = true;

    } else {

      ll j = i;

      while( j != 0 ){

	if( j % 10 == 3 ){

	  b = true;
	  j = 0;

	} else {

	  j /= 10;

	}

      }

    }

    if( b ){

      cout << i << endl;

    }
    
  }

  return 0;

}