import java.util.Scanner;

public class Three {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int A = s.nextInt() , B = s.nextInt();
		s.close();
		for(int i = A;i <= B;i++){
			if(i % 3 == 0){
				System.out.println(i);
			}else{
				String str = String.valueOf(i);
				if(str.indexOf("3") != -1){
					System.out.println(i);
				}
			}
		}

	}

}