import java.util.Arrays;
import java.util.Scanner;
public class length{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
	    int a = sc.nextInt();
	    int b = sc.nextInt();
	    int i;
	    for(i=0;a<=b;i++){
	        int c = i + a;
	        if(c % 3 ==0||Integer.toString(c).contains("3")){
	            System.out.println(c);
	        }
	    }
		sc.close();
    }
}