import java.util.Scanner;
public class Yukicoder03 {

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

		int A = sc.nextInt();
		int B = sc.nextInt();

		for(int i = A; i <= B; i++){

			if(i % 3 == 0){
				System.out.println(i);

			}else{
				String s = Integer.toString(i);

				if(s.indexOf("3") != -1){
					System.out.println(i);
				}
			}
		}

	}

}