import Control.Monad
import qualified Data.ByteString.Char8 as C (pack, unpack)
import qualified Data.ByteString.Lazy.Char8 as L (pack, unpack)
import Control.Monad
import qualified Data.ByteString.Char8 as C (pack, unpack)
import qualified Data.ByteString.Lazy.Char8 as L (pack, unpack)