The sunnah method of carrying a janzah is mentioned as follows:
First carry the left front of the Janazah on the right shoulder (this will be the deceased right shoulder) and walk ten steps. The n carry the left rear on the right shoulder for ten steps. Then carry the right front on the left shoulder for ten steps and finally the right rear on your left shoulder for ten steps. Great merit has been mentioned in the Hadith for carrying the Janazah for at least forty steps.
My question is whilst a moves in the sequence mentioned above how do the others three move?