How many years passed after Möngke begame the Great Khan before he gave control of the Caucasus region to the Golden HOrde?
return Möngke begame the  Great Khan ;return Möngke gave control of the  Caucasus region to the   Golden HOrde ;return year of #1 ;return year of #2 ;return difference of #4 and  #3
['select', 'select', 'project', 'project', 'arithmetic']