import java.util.*;

public class Main {
	public static void main(String[] args) {

		int o,p,q;
		
		Scanner sc  = new Scanner(System.in);
		int[] test  = new int[100000];
		int[] test2 = new int[100000];
	 // String str = sc.next();
	    
	  int	s = Integer.parseInt(sc.next());
		int	t = Integer.parseInt(sc.next());
		
		
		for(int a = s ; t > a ; a++)
		{
			if( a % 3  == 0 )   System.out.println(a);
		 	else  if( a % 10 == 3 )   System.out.println(a);
		}
		
   
			
/*		
		while(true){
			 
			if(  s /t < t )  o++;
			else  break;	
		
			
		}
		
	  System.out.println(o);
		
		
        
/*
		while(true){
		
    	int s = Integer.parseInt(sc.next());
    	int t = Integer.parseInt(sc.next());
     	
     	if( s == 0 && t == 0 ) break;
        
        test  [d] = s ;
        test2 [d] = t ;
     	
     	d++;
		}
*/
     
    	System.out.println();
	}
}