import java.util.Scanner;

public class Puroguram{
	static Scanner scan= new Scanner(System.in);
	
	public static void main(String[] Args){
		int A = scan.nextInt();
		int B = scan.nextInt();
		
		for(;A<=B;A++){
			String a = String.valueOf(A);
			if(A%3==0){
				System.out.println(A);
			}else if(a.contains("3")){
				System.out.println(A);
			}	
			
		}
	}
}