trying to create a function that returns the list from even numbers to odd numbers, please help

    public static Node<int> EvenOdd(Node<int> head)
    {
        Node<int> curr = head;
        Node<int> newNode = new Node<int>(GetLength(head));
        

        while (curr != null)
        {
            if (curr.GetValue() % 2 == 0)
            {
                if (newNode == null)
                {
                    newNode = curr;
                }
                else { newNode.SetNext(curr) ; }
            }
            curr = curr.GetNext();
        }
        Node<int> curre = head;
        while (curre != null)
        {
            if (curre.GetValue() % 2 != 0)
            {
                newNode.SetNext(curre);
            }
            curre = curre.GetNext();
        }

        return newNode;
    }

    public static Node<int> EvenOdd(Node<int> head)
    {
        Node<int> curr = head;
        Node<int> newNode = new Node<int>(GetLength(head));
        

        while (curr != null)
        {
            if (curr.GetValue() % 2 == 0)
            {
                if (newNode == null)
                {
                    newNode = curr;
                }
                else { newNode.SetNext(curr) ; }
            }
            curr = curr.GetNext();
        }
        Node<int> curre = head;
        while (curre != null)
        {
            if (curre.GetValue() % 2 != 0)
            {
                newNode.SetNext(curre);
            }
            curre = curre.GetNext();
        }

        return newNode;
    }