import java.util.Scanner;

public class No_207 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int beginningNum = sc.nextInt();
		int endNum = sc.nextInt();
		
		String bn = String.valueOf(beginningNum);
		
		while(beginningNum <= endNum){
			if(beginningNum%3 == 0){
				System.out.println(beginningNum);
			}
			else if(bn.indexOf('3') != -1){
				System.out.println(beginningNum);
			}
			
			bn = String.valueOf(++beginningNum);
		}

	}

}