private ListElement progressRoboMeeting(ListElement currentRobot) {
        ListElement helpRobot = currentRobot;
        while (helpRobot != null) {
            if (helpRobot.getNext() != null) {
                if (!this.robotPlace.exist(helpRobot.getNext().getId())) {
                    helpRobot.setNext(helpRobot.getNext().getNext());
                }
            }
            helpRobot = helpRobot.getNext();
        }   
       return currentRobot;
    }