import java.util.Scanner;

public class Answer {
	public static void main(String str[]) {
        Scanner sc = new Scanner(System.in);

        int a = Integer.valueOf(sc.next());
        int b = Integer.valueOf(sc.next());

        for(int i=a ; i<= b; i++) {
        	if(i % 3 == 0) {
        		System.out.println(i);
        	} else if(String.valueOf(i).contains("3")){
        		System.out.println(i);
        	}
        }
	}
}