Given 2x4 matrix it contains numbers in the range 1-8.
For example:

[[4,2,6,5],
 [1,8,7,3]]

You have 3 operations:

1. Rotate: Middle 4 numbers rotate in clockwise manner.
   [4,2,6,5
   1,8,7,3]
   becomes
   [4,8,2,5
   1,7,6,3]

2. Swap: swaps the two arrays
   [4,2,6,5
   1,8,7,3]
   becomes
   [1,8,7,3
   4,2,6,5]

3. Shift (right):
   [4,2,6,5
   1,8,7,3]
   becomes
   [5,4,2,6,
   3,1,8,7]

Your goal is to reach following state and return how many minimum operations would it take to reach that state.

[[1,2,3,4],
 [5,6,7,8]]

Similar questions:

• https://leetcode.com/problems/sliding-puzzle
• https://leetcode.com/problems/open-the-lock

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