Let me explain; this new week will have 14 days, from `Monday` to `Sunday`, then `secondMonday` to `secondSunday`.
Your purpose is to create a new function named `addWeek`, that takes a `Date` as an argument. Your function should return the weekday as a string, according to our new 14-day week format.
Now imagine you have an appointment with your doctor, and you have to wait for some hours, but you do not want to wait. So you decide that you need to create a new function named `timeTravel`, that allows you to change the **time** according to your needs.
Your function will take an `object` as an argument, and return a `Date`. You can see the `timeTravel` example below to understand the structure of the `object` argument.