import java.util.*;
class No207{
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in);
		Long a = sc.nextLong();
		Long b = sc.nextLong();
		for (Long i = a; i <= b; i++){
			if (i % 3 == 0){
				System.out.println(i);
			} else {
				if (String.valueOf(i).indexOf("3") > -1) {
					System.out.println(i);
				}
			}
		}
	}
}