#############################################
node1 = Node(2, None)
node2 = Node(6, node1)
node3 = Node(4, node2)
node4 = Node(5, node3)
node5 = Node(3, node4)
node6 = Node(2, node5)
node7 = Node(1, node6)
node8 = Node(1, node7)
node9 = Node(5, node8)
head = Node(4, node9)
print("########## Test 1 ###############")
head.printList()
RemoveDuplicates(head)
print('\nList after removing duplicates is :')
head.printList()
#############################################
node1 = Node(2, None)
node2 = Node(6, node1)
node3 = Node(4, node2)
node4 = Node(5, node3)
node5 = Node(3, node4)
node6 = Node(2, node5)
node7 = Node(1, node6)
node8 = Node(1, node7)
node9 = Node(5, node8)
head = Node(4, node9)
return head
#############################################
node1 = Node(1, None)
node2 = Node(5, node1)
head1 = Node(4, node2)
node3 = Node(9, None)
node4 = Node(9, node3)
head2 = Node(9, node4)
print("########## Test 1 ###############")
head1.printList()
print("\n")
head2.printList()
newhead = Add(head1, head2)
print("\n")
newhead.printList()
node1 = Node(9, None)
node2 = Node(7, node1)
head1 = Node(3, node2)
node3 = Node(9, None)
node4 = Node(9, node3)
node5 = Node(5, node4)
head2 = Node(9, node5)
