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 || isThreeExist(n)){
        System.out.println(n);
      }
    }
  }
  private static boolean isThreeExist(int a){
    char[] array = String.valueOf(a).toCharArray();
    for(char ca: array){
      if(ca == '3'){
        return true;
      }
    }
    return false;
  }
}