The input is a positive integer x, and you should print a alphabet diamond which has x layers. The alphabet diamond is in increasing alphabet order (A B C ... Z) from the outer to the inner. (x <= 26 )
Before the first alphabet, you should use only spaces to align the alphabet and, any other types of indentation is not acceptable.
Please note that there is no need to print space after the last alphabet in each line and, you only need to print a newline.
One positive integer x, x<=26.