import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		
		for(int i = A;i <= B;i++){
			if((i % 3 == 0) || String.valueOf(i).contains("3")){
				System.out.println(i);
			}
		}
		scanner.close();
	}
}