import java.util.Scanner;
public class world{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		long s = scan.nextLong();
		long e = scan.nextLong();
		for(long i = s; s<=e;i++){
			if(String.valueOf(i).indexOf("3")>-1){
				System.out.println(i);
			}else if(i%3==0){
				System.out.println(i);
			}
		}
	}
}