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

        int media = 0;
        ListIterator<Integer> it = serie.listIterator();
        int contador = 0;
        while(it.hasNext()) {
            media += it.next();
            contador++;
            if(contador < period) {
                mms.addLast(0);
                continue;
            } else if(contador > period) {
                it.previous();
                it.previous();
                it.previous();
                media -= it.previous();
                it.next();
                it.next();
                it.next();
                it.next();
            }


            mms.addLast(media / period);
        }

        return mms;
    }