import java.util.Scanner;

public class Exercises4{
  public static void main (String[] args){

    Scanner sc = new Scanner(System.in);

    int firstNum = sc.nextInt();
    int secondNum = sc.nextInt();

    for(int n = firstNum; n < secondNum; n++){
      if (n % 3 == 0 || n % 10 == 3 || n / 10 == 3){
        System.out.println(n);
      }
    }
  }
}