import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		for(int i = a ; i <= b ; i++) {
			boolean bool = false;
			if(i % 3 == 0) {
				bool = true;
			}
			for(int j = i ; j > 0 ; j /= 10) {
				if(j % 10 == 3) {
					bool = true;
				}
			}
			if(bool) System.out.println(i);
		}
 	}
}