1. Write a program to print a Triple nested X shape pattern: a. You ask the user size of the X pattern you want: b. You ask the user for the first, second and third characters you want printed. Sample output n = 6 ch 1='#' ch 2='%' ch 3= ' *' : #* # % * * % # # * * # # % *% # # # % * #* * % # #%# # # % # # % *%# * *%# * % # * % # Make sure to upload your code as well the codes output. Additionally, every line of code needs to be commented.