Ball owning and goal on two zones

Two marked zones are prepared, with 15-20 meters between them (A zone by the side, and B zone in front of the small area)
on each one are 3 ofensive players and 1 defensive player are placed
The ball begins on A zone and they have to maintain the ball owning without the defender stealing it
For passing the ball from A zone to B zone, a minimun of four touches have to be made
On B zone another four touches must be made, to finish attacking the goal