There are 6 people at the front desk, and 4 classes and 3 classes need to be arranged. How to arrange shifts after 4 days' rest?

According to the needs, the shift arrangement is shown in the following table 1 and table 2.

In the table, there are 6 people in A, B, C, D, E and F, "1" is the morning shift, "2" is the middle shift, "3" is the night shift, and "0" is the rest.

1) As shown in Table 1, there are six people in four shifts and three shifts, each shift has two days in the morning, two days in the middle shift 1 day, and two days in the night shift 1 day (average monthly rest1day).

2) As shown in Table 2, there are six people in five shifts and three shifts. Everyone has two days of morning shift, two days of middle shift, 1 day of night shift and 1 day of rest (five days of rest every month on average).

You can choose according to the actual situation.