How to calculate the job number of the grass-roots staff in the hotel?

Our job number is compiled according to the entry time, with the advanced job number in front and the backward job number behind. In order to distinguish departments, you can add the department code before the job number. For example, the human resources department can add HR before the job number, and the administrative department can add AD before the job number, listing the department meaning represented by each letter first. The last two departments suggest to compile the employment year, and the last four digits are the serial number and the job number ***8. For example, the employee job number of the Human Resources Department in 2007 can be compiled as HR07000 1.