import java.util.*;
public class Main {
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        int b = scan.nextInt();
        for(int i = a ; i <= b ; i++){
        	if(i%3 == 0 || String.valueOf(i).indexOf("3") != -1){
        		System.out.println(i);
        	}
        }
    }
}