import java.util.Scanner;


    /**
    * @author aothma2s
    */

    public class Eingabe {


    public static int filter(String start,String stop,String skip){
        int anz= 0;
        Scanner sc = new Scanner(System.in);
        String result = "";
        String s = "";
        while(sc.hasNext()){

            s = sc.next();
            if(s.equals(start)){
                while(sc.hasNext() && !s.equals(stop))
                {
                    s = sc.next();
                }
            }
            else if(s.equals(skip))
            {
                s = sc.nextLine();

            }
            else {

                result = result + s + " ";
                ++anz;
            }

        }

        System.out.println(result);
        return anz;

    }


}