(move truck1 city0 citya)
(load packageac truck1 citya)
(move truck1 citya cityb)
(load packagebc truck1 cityb)
(load packageba truck1 cityb)
(move truck1 cityb cityc)
(load packagecb truck1 cityc)
(load packageca truck1 cityc)
(unload packagebc truck1 cityc)
(unload packageac truck1 cityc)
(move truck1 cityc citya)
(unload packageca truck1 citya)
(unload packageba truck1 citya)
(load packageab truck1 citya)
(move truck1 citya cityb)
(unload packagecb truck1 cityb)
(unload packageab truck1 cityb)
; cost = 17 (unit cost)
