With their lives on the line and to protect the city, Iron Man and Jarvis are working on to build an impenetrable and unbreachable wall around the opening so that no more enemies can show up. Tony has completed a part of the wall and has left Jarvis to do the rest. Jarvis is only permitted to use the blocks of dimensions `2xx1` and `1xx2` (length x height) but he has an infinite number of these blocks.
A wall is said to be completed if it is in the form of a complete cuboid with no holes in between.
In each case, the first number is the length of the wall say n and, n integers are the initial heights of the wall (made by Tony) each of unit length.

What is the minimum number of blocks required in Case 2?

Options

A. 1451
B. 355
C. 1456
D. infinity