2. Change List

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

import static java.lang.Integer.valueOf;

public class Ex02_ChangeList {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        List<Integer> lineNums = Arrays.stream(scanner.nextLine().split(" "))
                .map(Integer::parseInt)
                .collect(Collectors.toList());

        String command = scanner.nextLine();

        while (!command.contains("end")) {
            String[] tokens = command.split(" +");
            int number = Integer.parseInt(tokens[1]);

            if (tokens[0].equals("Delete")) {
                while (lineNums.contains(number)) {
                    lineNums.remove(Integer.valueOf(number));
                }

            } else if (tokens[0].equals("Insert")) {
                int index = Integer.parseInt(tokens[2]);
                lineNums.add(index, number);

            }

            command = scanner.nextLine();
        }

        for (int i = 0; i < lineNums.size(); i++) {
            System.out.print(lineNums.get(i) + " ");
        }
    }
}