Take a look at the pattern below to the right hand's fingering - i, m, a. Looks like it has been written upside-down by a mistake. Well, it is not a mistake; it is a new approach of practicing, for your right hand, which called: opposite-fingering.
Practicing opposite-fingering makes a very significant improvement for your right hand; It will urge your fingers to make a full movements. It will bring your right hand to play naturally without planning the i, m, a, order, which is very important for sight-reading. And most important, it will free your mind from fixation such as, that each finger is identified with a certain string.