import java.util.Scanner;
public class Main{
	private static Scanner sc=new Scanner(System.in);
	public static void main(String args[])throws Exception{
		int a=sc.nextInt(),b=sc.nextInt();
		for(int i=a;i<=b;i++){
			if(i%3==0 || in3(i)){
				System.out.println(i);
			}
		}
	}
	private static boolean in3(int i){
		String s=String.valueOf(i);
		if(s.indexOf("3")==-1)return false;
		else return true;
	}
}