import java.util.Scanner;

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

} // class