What are coordinate points if (5,6) undergoes rotation of 90 degrees clockwise, 180 degrees clockwise, 270 degrees clockwise?

When the point (5,6) undergoes a rotation of 90 degrees clockwise, it will become (-6,5).

When the point (5,6) undergoes a rotation of 180 degrees clockwise, it will become (-5,-6).
When the point (5,6) undergoes a rotation of 270 degrees clockwise, it will become (6,-5).