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  1. f=lambda n:(n>15and f(n/16)or"")+"HBKD"[n/4%4]+"OAEI"[n%4]
  2.  
  3. print f(10)
  4. print f(1000)
  5. print f(123456789)
Success #stdin #stdout 0.01s 47720KB
stdin
Standard input is empty
stdout
KE
HIDEKO
BIBAKIDODAHABA