import Control.Monad
import Data.Char

main :: IO ()
main = do
  n <- readLn
  let rd = map digitToInt $ take 190 $ concatMap show [1..]
      (res, c) = foldr (f n) ([], 0) rd

  putStr $ show c
  putStr "."
  mapM_ (putStr . show) res
  putStrLn ""

  where
    f n x (res, c) = (x'`mod`10:res, x'`div`10)
      where
        x' = x*n+c