>>> coordinates = (-23.547778, -46.635833)
>>> lat, long_ = coordinates
>>> long_
-46.635833
>>> lat
-23.547778
>>> traveler_ids = [('USA', '311975855'), ('BRA', 'CE342567'), ('ESP', 'XDA205856')]
>>> for country, passport_no in sorted(traveler_ids):
...     print('%s:%s' % (country, passport_no))
BRA:CE342567
ESP:XDA205856
USA:311975855