A drone logistics network routes automated deliveries to different distribution hubs. Each hub has a unique zone code as shown below:

A system program is used to dispatch a parcel to a locker at one of these hubs. The program:

• requests the operator to enter the hub code
• validates the entered code using the function IsValidHub()
• if the code is valid, requests the specific locker compartment number
• joins the hub code and locker number to generate a unique dispatch code
• runs the RoutePackage() subroutine

01  hubID = input("Enter hub identifier: ")
02  // Validate input
03  validHub = IsValidHub(hubID)
04  if validHub == true then
05      lockerIdx = input("Enter locker index: ")
06      routeLabel = hubID + lockerIdx
07      RoutePackage(routeLabel)
08  endif