How many people do you need to recruit if you want to meet the schedule?

Number the eight employees first and replace them with numbers.

In the first picture, the top three people have a rest the next day and a day off the day before. If someone wants to rest continuously, they can switch shifts with others.

In the second picture, the first employee is determined every day, and the rest are followed up in order.

For example, the employee number 1, 65438+February 1 can rest for 3 days.

From 65438+February 1 to 65438+February 5, employee No.5 took three days off after working continuously for five days, and continued to work on February 9, 65438.