a

public static DoublyLinkedList<Integer> calcMMS(DoublyLinkedList<Integer> serie, Integer period) {
        DoublyLinkedList<Integer> mms = new DoublyLinkedList<>();
        DoublyLinkedList<Integer> aux = new DoublyLinkedList<>();

        int media = 0;

        while(serie.listIterator().hasNext()) {
            int aux = it.next();
            media += aux;
            aux.addLast(aux);
            if(aux.size() < period) {
                mms.addLast(0);
                continue;
            } else if(aux.size() > period)
                media -= aux.removeFirst();

            mms.addLast(media / period);
        }

        return mms;
    }