While performing japam, how do we keep count? I used to mark 3 counts for each finger; have heard elsewhere that one must count twice for each finger. Which is correct?

While performing japam, we can keep a count of 10 with our fingers.
Going clockwise, start the count from the base of the little finger for counts 1-3, the tip of the ring finger for the 4th count, the tip of the middle finger for the 5th count, the tip of the index finger for the 6th count, middle of the index finger for the 7th count, base of the index finger for the 8th count, base of the middle finger for 9th count and ending at the base of ring finger for the 10th count. While going clockwise, little and index fingers are used for 3 counts each, ring and middle fingers are used for 2 counts each for a total of 10 counts. If it is difficult to understand this, it is better to request a practitioner for a demonstration for a better understanding.