-- http://yukicoder.me/problems/836
-- No.347
import Control.Applicative
import Data.List

type Polyn = [(Double,Double)]

diff :: Polyn -> Polyn
diff = map (\(factor,pow) -> (pow*factor, pow-1))

-- intg :: Polyn -> Polyn
-- intg = map (\(factor,pow) -> let p' = pow + 1 in (factor/p', p'))

app :: Double -> Polyn ->  Double
app x = sum . map (\(f,p) -> f*(x**p))

intg :: Double -> Polyn -> Double
intg b = foldl' (
    \acc (f,p) -> acc + case p of (-1) -> f*log b
                                  _  ->  let p' = p+1 in (f/p' * b**p')
                ) 0

main = do
    _ <- getLine
    b <- readLn
    as <- zip (repeat 1) . map read . words <$> getLine
    print . app b . diff $ as
    print . intg b $ as