On an excursion to the park, students went first to the north, then to the northeast

On an excursion to the park, students went first to the north, then to the northeast, then to the southeast. In what directions will they return back if they go the same way?

Correct answer: northwest, southwest, south.
If the group initially moved north, then northeast, then southeast, then the first leg of the return road should be the opposite of southeast northeast. Then they had to cross in the opposite direction the middle, southeastern section of the road, which will be the southwest. And at the end of the way back, the group will turn south, since from the beginning they were moving in the north direction.