import java.util.Scanner;

public class A000207 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int st = sc.nextInt();
		int en = sc.nextInt();
		sc.close();
		for(int i = st;i<=en;i++) {
			if(i%3==0) {
				System.out.println(i);
				continue;
			}
			int c = i;
			while(true) {
				if(c%10==3) {
					System.out.println(i);
					break;
				}
				c /= 10;
				if(c==0)break;
			}
		}

	}
}