By typing the following, the two boxes with its number contents are lying next to each other from left to right:

$\displaystyle \boxed{\begin{array}{cccc}16&02&03&13\\

05&11&10&08\\

09&07&06&12\\

04&14&15&01\end{array}}\boxed{\begin{array}{cccc}1 6&02&03&13\\

05&11&10&08\\

09&07&06&12\\

04&14&15&01\end{array}}$

How would I set it up whereby one box is sitting above the other box?