import java.util.*;

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