> new Bu Rina;wash;3450;no
order #1 for Bu Rina, Rp 24150
> new Pak Budi;iron;2000;yes
order #2 for Pak Budi, Rp 15000
> new Mbak Sari;washiron;-500;no
refused: weight must be 1..50000 g, not -500
> new Mas Joko;washiron;5200;no
order #3 for Mas Joko, Rp 52000
> advance 1
order #1: received -> washing
> advance 1
order #1: washing -> ready
> pickup 2
order #2 is not ready (received)
> advance 2
order #2: received -> washing
> advance 2
order #2: washing -> ready
> pickup 2
order #2 picked up by Pak Budi, pay Rp 15000
> advance 2
order #2 cannot advance (picked up)
> pickup 1
order #1 picked up by Bu Rina, pay Rp 24150
> advance 9
order #9 does not exist
> pickup two
not a number in 'pickup two'
> refund 1
unknown command 'refund'
> list
Profitina Laundry, 3 orders
  #1 Bu Rina (wash, 3450 g): picked up
  #2 Pak Budi (iron, 2000 g): picked up
  #3 Mas Joko (washiron, 5200 g): received
> report
picked up 2 of 3, paid Rp 39150, still in the shop Rp 52000
