import java.util.Arrays;
import java.util.LinkedList;
import java.util.Scanner;

public class Main {
	
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		final long A = sc.nextLong();
		final long B = sc.nextLong();
		
		for(long cur = A; cur <= B; cur++){
			if(cur % 3 == 0 || (cur + "").contains("3")){
				System.out.println(cur);
			}
		}
		
		
		
	}
	
}