Change List [Mimi]

import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class _02_ChangeList {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        List<String> elements = Arrays.stream(scanner.nextLine().split(" "))
                .collect(Collectors.toList());

        String input = scanner.nextLine();
        while (!input.equals("end")) {
            String[] data = input.split("\\s+");
            String command = data[0];

            switch (command) {
                case "Delete":
                    elements = elements.stream()
                            .filter(e -> !e.equals(data[1]))
                            .collect(Collectors.toList());
                    break;
                case "Insert":
                    String element = data[1];
                    int position = Integer.parseInt(data[2]);
                    if (position >= 0 && position<elements.size()) {
                        elements.add(position, element);
                    }
                    break;
            }
            input = scanner.nextLine();
        }
        System.out.println(elements.toString().replaceAll("[\\[\\],]", ""));
    }
}