import java.util.Scanner;
public class renshu{
 
public static void main(String[] args){
	Scanner kbs=new Scanner(System.in);
	int i,k,b;
	i=kbs.nextInt();
	
	k=kbs.nextInt();
	for(b=i;b<=k;b++){
		if(b%3==0||Integer.toString(b).contains("3")){
			System.out.println(b);
		}
	}
	System.out.println("\n");



	}
}