Subtract Two Linked Lists

easy

1. You are given two linked lists with N and M nodes respectively.
  2. The linked list as a whole represents a large positive number.
  3. You have to write a function that subtracts the smaller number
     from larger one and returns a pointer to the resultant linked list.
  4. display is a utility function which displays the contents of Linked List,
     feel free to use it for debugging purposes.
  5. main takes input from the users and creates the Linked Lists. You can use
     display to know its contents.
  6. This is a functional problem. 
  7. You should code only the sublinkedList function. It takes as input the
     heads of the first and second linked list respectively. It should find the
     difference of two linked lists and return a pointer to the resultant linked list.
  8. Don't change the code of Node, main and display.

Input Format

First line takes N, the number of elements in the first list. Second line takes input N space separated numbers reperesenting elements of the first linked list. Third line takes M, the number of elements in the second list. Fourth line takes input M space separated numbers reperesenting elements of the second linked list. Input is handled for you.

Output Format

Difference of two linked lists. Output is handled for you.

Constraints

1 &lt;= N &lt;= 1000
  1 &lt;= M &lt;= 1000

Notice

Try First, Check Solution later

1. You should first read the question and watch the question video.
2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

Example

Input

7
0 0 0 1 0 0 0
4
0 0 1 0

Output

0 0 0 0 9 9 0

Split Linked List In K Parts

Adjacent Twins