Dessign a function empty_square(n) that given an int value n>2 writes an empty square of dimension n.
The statement asks for a function that writes something, thus in this problem print will be used instead of return.
About statements
The official statement of a problem is always the one
in the PDF document. The HTML version of the statement
is also given to help you, but may contain some content
that is not well displayed. In case of doubt, always use the PDF.