orders on the board : 9,  tree height : 3

It is 12:30. The next bag due is:
  13:20  PL-019 Rina        9 kg

Everything promised between 10:00 and 14:30:
  10:45  PL-008 Joko        5 kg
  11:30  PL-014 Dewi        4 kg
  12:00  PL-016 Hendra     11 kg
  13:20  PL-019 Rina        9 kg
  14:10  PL-023 Mega        8 kg

Rina collects PL-019 at 13:20.
removed: yes,  tree height now : 3

The window again, after the collection:
  10:45  PL-008 Joko        5 kg
  11:30  PL-014 Dewi        4 kg
  12:00  PL-016 Hendra     11 kg
  14:10  PL-023 Mega        8 kg
