package b2015_09_19;

import java.util.Scanner;

public class No207 {
public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	long A = sc.nextLong();
	long B= sc.nextLong();
	for(; A<=B; A++){
		if(A%3==0){
			System.out.println(A);
			continue;
		}
		long tmp = A;
		while(tmp!=0){
			if(tmp%10==3){
				System.out.println(A);
				break;
			}
			tmp/=10;
		}
	}
}
}