import java.util.Scanner;

public class No207 {

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

}