import java.util.Scanner; class Main{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); int a = sc.nextInt(), b = sc.nextInt(); for(int i = a ; i <= b ; i++) { if(i % 3 == 0) { System.out.println(i); continue; } String str = String.valueOf(i); char[] Array = str.toCharArray(); for(char ch:Array) { if(ch == '3') { System.out.println(i); break; } } } } }