import java.util.Scanner;
class Nabeatu{
  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 c = "" + i;
      if(i % 3 == 0 || c.indexOf("3") !=-1){
        System.out.println(i);
      }
    }
  }
}