import java.util.Scanner;

public class yukicoder_207 {
	public static void main(String[] args) {
	
		Scanner stdIn = new Scanner(System.in);
	
		String str = stdIn.nextLine();
		String[] array = str.split(" ");
	
		long a = Long.parseLong(array[0]);
		long b = Long.parseLong(array[1]);
	
		for (long i = a; i <= b; i++) {
			String s = String.valueOf(i);
			
			if ((i % 3 == 0) || (s.indexOf("3") != -1)) {
				System.out.println(i);
			}
		}
	}
}