wrong ball

please clear up hitting the wrong ball
rule
it a 2 stroke
but does the stroke that you made with the ball count
so it is really a 3 stroke pen
thanks
dave

If a competitor makes a stroke or strokes at a wrong ball that is not in a hazard, he incurs a penalty of two strokes.

Strokes made by a competitor with a wrong ball do not count in his score.

thanks for clearing that up
dave