import java.io.*;
import java.util.*;

class Main207 {
	
	public static void main (String[] args) throws IOException {
		BufferedReader br = 
			new BufferedReader(new InputStreamReader(System.in));
		
		String[] line = br.readLine().split(" ");
		int a = Integer.parseInt(line[0]);
		int b = Integer.parseInt(line[1]);
		
		for (int i = a; i <= b; i++) {
			if (i % 3 == 0 || (i + "").indexOf("3") != -1) System.out.println(i);
		}
	}
}