import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		sc.close();

		for(int i=0; i<=b-a; i++){
			String str = String.valueOf(a + i);
			if((a+i) % 3 == 0){
				System.out.println(a + i);
			}else if(str.indexOf("3") != -1){
				System.out.println(a + i);
			}
		}
	}
}