(define (problem strips-gripper2)
  (:domain gripper-strips)
  (:objects rooma roomb ball1 ball2 left right)
  (:init (room rooma)
         (room roomb)
         (ball ball1)
         (ball ball2)
         (gripper left)
         (gripper right)
         (at-robby rooma)
         (free left)
         (free right)
         (at ball1 rooma)
         (at ball2 rooma))
  (:goal (at ball1 roomb)))