When is Friday? When is Friday?
Elementary
RU English

Friday is an awesome day. It's the end of the week after which you can just relax and attend to all of the things you've been pushing away. It's really good to know how many days you still have to wait, isn't it?

Your task is to write a function that will count...
For example, if that given day is Thursday, then the answer will be 1. If that day is Monday, the result is 4. And if that day is Friday, the function should return 0.

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