import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) {
		BufferedReader read = new BufferedReader(new InputStreamReader(System.in));
		try {
			String[] box = read.readLine().split(" ");
			long[] num = new long[2];
			for (int i = 0; i < 2; ++i) {
				num[i] = Long.parseLong(box[i]);
			}

			while (num[0] <= num[1]) {

				String ch = num[0] + "";

				if (num[0] % 3 == 0) {
					System.out.println(num[0]);
				} else {
					for (int i = 0; i < ch.length(); ++i) {
						if (ch.charAt(i) == '3') {
							System.out.println(num[0]);
							break;
						}
					}
				}

				++num[0];
			}

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}