I ranged attack enemy in a cloud from outside cloud, advantage or disadvantage?

@JeremyECrawford Fog Cloud=heavily obscured. I ranged attack enemy in Cloud from outside Cloud. Adv or Adv/Dadv canceling each other out?

— Frederik Forger (@forger_f) April 18, 2016

Advantage and disadvantage always cancel each other. #DnD https://t.co/LFyQft5YG5

— Jeremy Crawford (@JeremyECrawford) April 22, 2016