//No.207 世界のなんとか
//http://yukicoder.me/problems/560
//20170417 1636

package no207;

import java.util.Scanner;

public class No207 {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int a;
		int b;
		int num;
		
		a = scan.nextInt();
		b = scan.nextInt();

		scan.close();
		
		for(int i = a; i <= b; i++){
			if(i % 3 == 0) {
				System.out.println(i);
			} else {
				num = i;
				while(num > 0){
					if(num % 10 == 3) {
						System.out.println(i);
						num = 0;
					} else {
						num /= 10;
					}
				}
			}
		}
		
	}

}