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  1. from itertools import permutations
  2.  
  3. input = ('s', 't', 'u', 'f', 'f')
  4. length = 2
  5.  
  6. for p in permutations(input, r=length):
  7. print(p)
Success #stdin #stdout 0.04s 9984KB
stdin
Standard input is empty
stdout
('s', 't')
('s', 'u')
('s', 'f')
('s', 'f')
('t', 's')
('t', 'u')
('t', 'f')
('t', 'f')
('u', 's')
('u', 't')
('u', 'f')
('u', 'f')
('f', 's')
('f', 't')
('f', 'u')
('f', 'f')
('f', 's')
('f', 't')
('f', 'u')
('f', 'f')