import java.util.Scanner;
	

public class Main{
	
	
	public static void main(String args[])throws Exception{
		Scanner sc = new Scanner(System.in);

		int A = sc.nextInt();
		int B = sc.nextInt();
		for(int i=A;i<=B;i++){
			if(i%3==0||contain3(i)){
				System.out.println(i);
			}
		}
	}

	private static boolean contain3(int i) {
		while(i>1){
			if(i%10==3){
				return true;
			}
			i/=10;
		}
		return false;
	}
	

}