import java.util.Scanner;

public class WorldN {

    public static void main(String[] args) {
       
        int a;
        int b;
        
        Scanner scanner = new Scanner(System.in);
        
        a = scanner.nextInt();
        b = scanner.nextInt();
        
        for(int i=a;i<=b;i++){
            if(i % 3 == 0 || isThree(i))
                 System.out.println(i);
            
        }
    }
    
    static boolean isThree(int num){
        
        String str = String.valueOf(num);
        
        for(int i=0;i<str.length();i++){
          
            if(str.charAt(i) == '3'){
                return true;
            }
            
        }
        
        return false;
        
    }
    
}