import java.util.Scanner;

public class No207 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		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){
				System.out.println(i);
			}else if(String.valueOf(i).indexOf("3") >= 0){
					System.out.println(i);					
			}
		}
		

	}

}