import java.util.*;

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 (i%3==0 || String.valueOf(i).contains("3")) System.out.println(i);
		}
		
	}
}