Pocket Girls

This time the billiard table has a hexagonal shape. It is divided into 4 sectors, and each sector has its "Pocket Girl". When some ball gets to the top or bottom pocket its Pocket Girl strips to the next level. But there are also 2 "middle" pockets - negative. When some ball gets to the negative (-) pocket, the appropriate girl dresses back. Appropriate girl - middle pockets have switches, that point to the top or to the bottom. If the switch point to the top - the top girl at this side dresses back. You may reverse-switch those switches, to save some girl from dressing back. Your aim is to undress all 4 girls to the highest 5th level. But, your opponent (as always) wants to dress back all girls.