import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		
		int a = scan.nextInt();
		int b = scan.nextInt();
		int n = 1;
		int x = 0;
		
		for(int i = a; i <= b; i++) {
			if(i % 3 == 0) {
				System.out.println(i);
			} else {
				x = i;
				while(n > 0) {
					if(x % 10 == 3) {
						System.out.println(i);
						break;
					} else {
						x = x / 10;
						if(x == 0) {
							break;
						}
					}
				}
			}
		}		
	}
}