Assume a machine during its initial testing phase produces 10 widgets a day. after 10 days of testing (starting on day 11), it begins to run at full speed, producing 40 widgets a day. after 50 days at full speed (days 11-60), it gradually starts becoming less productive, and produces 1 fewer widget per day, (ie. 39 widgets on day 61, etc.) until on day 100 it no longer produces any widgets. write a program that will read in a day number from the keyboard and will report the total number of widgets produced from the initial testing phase up to and including the day entered. for example, entering 3 would report 30 widgets.