def test_2():
    n1 = Node()
    n1.value = 1
    n2 = Node()
    n2.value = 2
    n3 = Node()
    n3.value = 3
    n4 = Node()
    n4.value = 4
    n5 = Node()
    n5.value = 5
    n1.next = n2
    n2.prev = n1
    n2.next = n3
    n3.prev = n2
    n3.next = n4
    n4.prev = n3
    n4.next = n5

    linkedList = LinkedList()
    linkedList.first = n1
    linkedList.last = n5

    list_to_strange_list(linkedList)