I-A kunye ne-B imalunga ne-60 km eyahlukileyo kwenye kwaye emva kwe-6hrs bayobabini bobabini. Ukuba uhamba nge-2/3 yesantya sakhe kwaye u-B uhambe kabini ngesantya sakhe, emva koko badibana kunye emva kwe-5 h. Isantya se