s3 = set({77, 23, 91, 271})
print(s3)

s4 = set("123abc")   # creating set from a string
print(s4)

s5 = set(['one', 'two', 'nine', 33, 13])   # creating set from a list
print(s5)

s6 = set(("alpha", "beta", "gamma"))   # creating set from a tuple
print(s6)