import Control.Applicative ((<$>), (<*>))
import Control.Monad (replicateM)

main :: IO ()
main = do
  solve <$> getLine <*> replicateM 8 getLine >>= putStrLn

solve :: String -> [String] -> String
solve s bs = let n = sum . map (length . filter (== '.')) $ bs
             in if even n then s else next s

next :: String -> String
next "yukiko" = "oda"
next "oda" = "yukiko"