import java.util.Scanner;

public class Main{

	static Scanner s=new Scanner(System.in);

	public static void main(String __[]){
		input();
		solve();
	}

	private static void input(){
	}

	private static void solve(){
		int a=s.nextInt(),b=s.nextInt(),buf;
		for(int i=a;i<=b;i++) {
			if(i%3==0)
				System.out.println(i);
			else {
				buf=i;
				while(buf>0) {
					if((buf%10)==3) {
						System.out.println(i);
						break;
					}
					buf/=10;
				}
			}
		}
	}
}