import java.util.Scanner;

public class no207 {
	public static void main(String[] args) {
		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||String.valueOf(i).indexOf("3")!=-1){
				System.out.println(i);
			}
		}
	}

}