import java.util.*;
public class World{
	public static void main(String[] args){
		int n1,n2;
		Scanner scan = new Scanner(System.in);
		n1=scan.nextInt();
		n2=scan.nextInt();

		for(int i = n1;i<=n2;i++){
			if(i==1)continue;
			if(i%3==0){
				System.out.println(i);
			}else if(String.valueOf(i).indexOf("3")!= -1){System.out.println(i);
		}
		}
	}
}