bri = set(['brazil', 'rusija', 'indija'])

print('indija' in bri)
print('usa' in bri)

brik = bri.copy()
brik.add('kina')
print(brik.issuperset(bri))

bri.remove('rusija')
print(bri & brik) #ili bri.intersection(brik)


aed0355e464f4586ff4d1a5f3b1a33af8ff38af0
<mask token>

<mask token>
print('indija' in bri)
print('usa' in bri)
<mask token>
brik.add('kina')
print(brik.issuperset(bri))
bri.remove('rusija')
print(bri & brik)

bri = set(['brazil', 'rusija', 'indija'])
print('indija' in bri)
print('usa' in bri)
brik = bri.copy()
brik.add('kina')
print(brik.issuperset(bri))
bri.remove('rusija')
print(bri & brik)

bri = set(['brazil', 'rusija', 'indija'])

print('indija' in bri)
print('usa' in bri)

brik = bri.copy()
brik.add('kina')
print(brik.issuperset(bri))

bri.remove('rusija')
print(bri & brik) #ili bri.intersection(brik)

