Hi.
It is a calendar of food for Korean Air shift workers.
* Flex working and Shift working code entered.

It is a meal ticket calendar function.
* Shows shift work schedule.
* Calculate the total meal price per month according to the work entered in the calendar.
  - If you enter the usage amount, it shows the remaining amount of meal ticket.
* Calculates the number of parking and the year entered in the calendar, and shows the usage per period.
* You can specify the start month for the year.
  - Annual usage starts from January before the start of the year.
  - Shows the usage from the start month to the current month from the beginning of the year.