import java.util.Scanner;

public class Yuki3 {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		scan.close();
		for(int i= a; i <= b; i++) {
			String str = String.valueOf(i);
			if(i % 3 == 0 ||  str.indexOf("3") != -1){
				System.out.println(i);
			}
		}
	}
}