Train - Lists

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

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

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

        int wagonCapacity = Integer.parseInt(scanner.nextLine());

        String command = scanner.nextLine();
        while (!command.equals("end")) {
            String[] input = command.split(" ");

            if (input[0].equals("Add")) {
                int numberPassengers = Integer.parseInt(input[1]);
                listOfWagons.add(numberPassengers);
            } else {
                int passengersAdd = Integer.parseInt(input[0]);

                for (int i = 0; i < listOfWagons.size(); i++) {
                    int currentWagon = listOfWagons.get(i);
                    if (currentWagon + passengersAdd <= wagonCapacity) {
                        listOfWagons.set(i, currentWagon + passengersAdd);
                        break;
                    }
                }
            }
            command = scanner.nextLine();
        }
        for (int wagon : listOfWagons) {
            System.out.print(wagon + " ");
        }
    }
}