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{-# LANGUAGE Rank2Types, MultiParamTypeClasses #-}
module T where
import qualified Prelude as T(length,Monad,Integer)
import qualified Data.ByteString as T(length)
import Prelude(length,(+),(=<<),Monad(..),Maybe(..),Eq)
import Data.Maybe
import Control.Monad(Monad(..),MonadPlus(..))
length :: T.Integer
length = 0
class N a
class S a
class C a b where
c1 :: N b => a -> b
c2 :: (N b,S b) => a -> b
c3 :: forall a. a -> b
c4 :: a1 -> b
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