when you run fibonacci pythe output will look like thisfibonacci sequenceby al sweigart al@inventwithpython com --snip-enter the nth fibonacci number you wish to calculate (such as )or quit to quit how it works because fibonacci numbers quickly become very largelines to check if the user has entered number that' , or larger and displays warning that it may take some time for the output to finish displaying on the screen while your programs can quickly do millions of calculations almost instantlyprinting text to the screen is relatively slow and could take several seconds the warning in our program reminds the user they can always terminate the program by pressing ctrl- """fibonacci sequenceby al sweigart al@inventwithpython com calculates numbers of the fibonacci sequence view this code at tagsshortmath"" import sys print('''fibonacci sequenceby al sweigart al@inventwithpython com the fibonacci sequence begins with and and the next number is the sum of the previous two numbers the sequence continues forever ''' while truemain program loop while truekeep asking until the user enters valid input print('enter the nth fibonacci number you wish to' print('calculate (such as )or quit to quit:' response input(''upper( if response ='quit' print('thanks for playing!' sys exit( if response isdecimal(and int(response! nth int(response project #