Write a C++ program that uses nested for-loops to display a shape of characters (see examples). The program should ask the user to enter an integer n representing the number of rows/columns in a square. The number n should be positive and not less than 5. If the user input for n is invalid, then display an appropriate message and exit the program. The program should display a character C of size n formed with different characters. The outer edge is filled with character (#) and the inner edge is filled with character (*). See examples below: Examples if n=4 Error, small number if n=5 # # # # # if n=6 # # # # # # # *# if n=7 # # # # # # # 1 #o # * # # # # # # # # # # # # # # # # # # # # #