fork(1) download
  1. f = lambda s:s==sorted(s,key=s.index)
  2.  
  3. for s in input():
  4. print(f(list(str(s))))
Success #stdin #stdout 0.02s 9024KB
stdin
3, 51, 44999911, 123456789, 222222222222222222222, 818, 8884443334, 4545, 554553, 1234567891
stdout
True
True
True
True
True
False
False
False
False
False