PYTHON 3

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 widget less 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, and will report the total number of widgets produced by that day (including that day). For example, entering 3 would report 30 widgets. (Note: part of the challenge in this program is for YOU to work out the model for how to compute widgets produced in total, given the above information.)