Ringed Wall of Fire: How does the damage sequence go?

When casting WoF, you can cast it as a ring, and designate the inside of the ring to be the damage side (thus, everyone inside must save or take 5d8 at the time of casting). The spell then says

“A creature takes the same damage when it enters the wall for the first time on a turn or ends its turn there.”

So, by making a ring-shaped wall, are the creatures inside forced to save again on their turn (because they either ended within 2 squares of the damaging side, or they entered the wall’s space)?