#?coding=utf-8
s1?=?set([1,?2,?3,?4,?5])
s2?=?set([1,?2,?3,?4,?5,?6,?7,?8,?9])
if?not?s1.isdisjoint(s2):
????if?s1.issubset(s2):
????????for?num?in?s1:
????????????print(num)
????else:
????????for?number?in?s2:
????????????print(number)
else:
????print('無重合')