Regarding this request:
Rolando, “In any case, I do not want to be on the road for more than 12 hours
from our starting point at Greenlandic Gifts to the endpoint, which is at
Greenland Gifts as well.”
Does this mean that two consecutive times when the friends visit Greenland Gifts need to be no more than 12 hours apart, or the length of their entire route before it starts repeating itself should be no more than 12 hours?