import java.util.Scanner;
class Wandbox
{
    public static void main(String[] args)
    {
    	Scanner sc = new Scanner(System.in);
    	int a = sc.nextInt();
    	int b = sc.nextInt();
    	
    	for (int i = a; i <= b; i++) {
    		String str = String.valueOf(i);
    		if (i % 3 == 0 || str.contains("3")) {
    			System.out.println(i);
    		}
    	} 
    }
}