Merge two sorted linked lists and return the merged list as a new sorted list. The new list should be made by splicing together the nodes of the first two lists.
Merge two sorted linked lists and return the merged list as a new sorted list. The new list should be made by splicing together the nodes of the first two lists.
Example
Input: [1,2,4], [1,3,4]
Output: [1,1,2,3,4,4]