import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

public class zad2 {
    public static void main(String[] args) {
        String[] friends = {"Jan", "Kasia", "Piotr", "Iza", "Gienek"};
        System.out.println(friends[0]);

        List<String> friendList = new ArrayList<>();

        for (String imie: friends)
        {
            friendList.add(imie);
        }

        String[] newFriends = {"Iza", "Gienek"};
        List<String> newFriendList = new ArrayList<>();

        for (String imie: newFriends)
        {
            newFriendList.add(imie);
        }

        editList(friendList, newFriendList);

        for (int i = 0; i< friendList.size(); i++)
        {
            System.out.printf("%s ", friendList.get(i));
        }

    }


    public static void editList(Collection<String> l1, Collection<String> l2)
    {
        Iterator<String> it = l1.iterator();
        while (it.hasNext())
        {
            if (l2.contains(it.next()))
                it.remove();
        }

    }
}