import java.util.*;

public class Main {
  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 = String.valueOf(i);
      int count = 0;
      for(int j = 0; j < s.length(); j++) {
        if(s.charAt(j) == '3') count++;
      }
      if((i % 3 == 0) || (count > 0)) System.out.println(i);
    }
  }
}