#thisset={'apple','banana','cherry'}
#for x in thisset:
    #print (x)

#thisset={'apple','banana','cherry',1,2,3}
#print (thisset)

thisset ={'apple','banana','cherry'}
thisset.add('orange')
thisset.remove('apple')
print (thisset)

thisset={'apple','banana','cherry'}
x= thisset.pop()
print (x)
print (thisset)

