problem2

package JavaFundamentals.MidExam27_02;

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

public class Problem2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

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

        String input = scanner.nextLine();

        while (!input.equals("Mort")) {
            String[] tokens = input.split(" ");
            String command = tokens[0];
            //String value = tokens[1];
                    int value = Integer.parseInt(tokens[1]);


            switch (command) {
                case "Add":
                    sugar.add(value);
                    break;
                case "Remove":
                    sugar.remove(value);
                    break;
                case "Replace":
                    int replacement = Integer.parseInt(tokens[2]);
                    if (sugar.contains(value)) {
                        sugar.set(sugar.indexOf(value),replacement );
                    }
                    break;
                case "Collapse":
                    int number = Integer.parseInt(tokens[1]);

                    for (int index = 0; index < sugar.size(); index++) {
                        if (number >= sugar.indexOf(index)) {
                            sugar.remove(index);

                        }


                    }
                    break;

            }


            input = scanner.nextLine();
        }

        System.out.println(sugar.toString().replaceAll("[\\[\\],]", ""));
    }
}