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Given two lists sorted in increasing order, create a new list representing the intersection of the two lists. The new list should be made with its own memory — the original lists should not be changed.

**Note:** The list elements are not necessarily distinct.

**Example 1:**

**Input:
**L1 = 1->2->3->4->6
L2 = 2->4->6->8
**Output: **2 4 6**
Explanation: **For the given first two
linked list, 2, 4 and 6 are the elements
in the intersection.

**Example 2:**

**Input:
**L1 = 10->20->40->50
L2 = 15->40
**Output: **40

**Your Task:**

The task is to complete the function **intersection**() which should find the intersection of two linked list and add all the elements in intersection to the third linked list and return the head of the third linked list.

**Expected Time Complexity** : O(n+m)

**Expected Auxilliary Space** : O(n+m)

**Note:** n,m are the size of the linked lists.

**Constraints:**

1 <= size of linked lists <= 5000

1 <= Data in linked list nodes <= 1000

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Intersection of two sorted Linked lists

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