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  1. __import__('sys').setrecursionlimit(12000)
  2.  
  3. f=lambda n:1-len(set(`n`))and-~f(n+1)
  4.  
  5. for n in 8, 100, 113, 42, 20000, 11132:
  6. print '%8d -> %7d' % (n, f(n))
Success #stdin #stdout 0.01s 11112KB
stdin
Standard input is empty
stdout
       8 ->       0
     100 ->      11
     113 ->     109
      42 ->       2
   20000 ->    2222
   11132 ->   11090