Write a python program for the following: Given a non-empty string like "Auburn", write a function, stringfun, that returns a string like " AAuAubAubuAuburAuburn". Use main() to call stringfun() and pass the string, str, as a parameter to this function call. A few examples:

strringfun('Code') 'CCoCodCode'

stringfun('fall') ffafalfall

stringfun('ab') 'aab'