There are 10 security guards and they have four days off a month. How can they work shifts? How to arrange?

Suppose one or two positions can be arranged like this:

8-hour workday: 2 in the morning shift, 2 in the middle shift, 3 in the night shift, with 1 team leader responsible for overall For security work, two people are responsible for taking the rest. Each person has 4 days of rest, and 10 people have 40 days of rest. Therefore, two people who are responsible for taking over the shift have enough rest. You can also set one of the two people who take over the shift as the deputy captain. When the captain is not in place, the deputy captain is responsible for all work. . The vice-captain can also take over the shift.

12-hour system: 3 people in the day shift, 4 people in the night shift, two people on the off-duty, and one team leader.

In short, schedule shifts and take breaks as needed.