{-# OPTIONS_GHC -freduction-depth=1000 #-}
{-# LANGUAGE TypeOperators,DataKinds,KindSignatures,TypeFamilies,PolyKinds,UndecidableInstances #-}
-- Subject to Note [Sensitivity to unique increment] in T12545.hs with spread of 1.7%
import GHC.TypeLits
data Nat1 = Zero | Succ Nat1
type family Replicate1 (n :: Nat1) (x::a) :: [a]
type instance Replicate1 n x = Replicate1' '[] n x
type family Replicate1' (acc::[a]) (n :: Nat1) (x::a)  :: [a]
type instance Replicate1' acc Zero x = acc
type instance Replicate1' acc (Succ n) x = Replicate1' (x ': acc) n x
class Class a where
    f :: a -> a
data Data (xs::a) = X | Y
    deriving (Read,Show)
main = print test1
instance (xs ~ Replicate1 ( Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Zero ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) ()) => Class (Data xs) where
    f X = Y
    f Y = X
test1 = f (X :: Data ( Replicate1 ( Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Succ (  Zero ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) () ))
