import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader stdReader =new BufferedReader(new InputStreamReader(System.in));
		PrintWriter out = new PrintWriter(System.out);

			String[] nums = stdReader.readLine().split(" ");
			int a = Integer.parseInt(nums[0]);
			int b = Integer.parseInt(nums[1]);
			for(int i=a;i<b+1;i++){
				if(i%3==0){
					out.println(i);
				}else{
					int num = i;
					do{
						if(num%10==3){
							out.println(i);
							break;
						}
					}while((num/=10)!=0);
				}
			}
			out.flush();
	}
}