import java.util.Scanner;

public class No_207 {

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

		for (;a <= b;) {
			if (a % 3 == 0) {
				System.out.println(a);
			} else {
				for (int i = 0; i < aString.length(); i++) {
					if (aString.charAt(i) == '3') {
						System.out.println(a);
						break;
					}
				}
			}
			aString = String.valueOf(++a);
		}
		sc.close();

	}

}