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  1. m = [i.lower() for i in input().split()]
  2. s = set(m)
  3. a = list(s)
  4. print(m)
  5. print(s)
  6. print(a)
  7.  
Success #stdin #stdout 0.02s 9224KB
stdin
3 4 5 6 7 8
stdout
['3', '4', '5', '6', '7', '8']
{'4', '8', '7', '3', '6', '5'}
['4', '8', '7', '3', '6', '5']