package yukicoder;

import java.util.Scanner;

public class No207 {
public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	int A = sc.nextInt();
	int B  = sc.nextInt();
	for(int i = A; i <= B; i++){
		String s = Integer.toString(i);
		if(i%3==0||s.indexOf("3") != -1){
			System.out.println(i);
		}
	}
}
}