(pick ball4 rooma right)
(pick ball1 rooma left)
(move rooma roomb)
(drop ball4 roomb right)
(drop ball1 roomb left)
(move roomb rooma)
(pick ball3 rooma right)
(pick ball2 rooma left)
(move rooma roomb)
(drop ball2 roomb left)
(drop ball3 roomb right)
; cost = 11 (unit cost)
