'''vowels = {'a','e','i', 'o', 'u', 'a', 'e', 'i', 'o', 'u'}
print(vowels)
'''
ste = set([2,3,1,4,4,5,5,6,6,7,7,8,8,9,9,0])
print (ste)

x = set(range(5))
print (x)

L = [1,2,3]
s = frozenset(L)
print (s)
