On the right and the left, groups after groups.
To the right, and to the left, they flee.
on the right and on the left in groups
On the right hand and on the left, in sundry parties
Groups of people/relations from the right (side), and from the left (side)
… rush in toward you from every side to mock at you
From the right and the left, in groups
From the right hand and from the left, in different parties
From the right as well as the left, in groups
From the right hand and from the left (- from all directions) in various parties
(Sitting) in groups on the right and on the left (of you, O Muhammad SAW)