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  1. def szyfr(s):
  2. t=""
  3. for i in range(0, len(s)-1,2):
  4. t=t+s[i+1]+s[i]
  5. if len(s)%2!=0:
  6. t=t+s[len(s)-1]
  7. return t
  8.  
  9. print(szyfr("kotwica"))
Success #stdin #stdout 0.04s 9620KB
stdin
Standard input is empty
stdout
okwtcia