Sunil starts walking from Point R. He walks 28 m towards the west, turns right and walks for 20 m to reach point M. He then takes a left turn, walks for 30 m, takes a left turn and walks for 28 m to reach Point S. He finally takes a left turn and walks for 48 m to reach Point Z.

In which direction is Point Z with respect to Point R? (All turns are 90° turns only)