Stopped in Main.l2dll, mdo.hs:(30,16)-(32,27) _result :: IO (N Char) = _ x :: Char = 'h' xs :: [Char] = _ Stopped in Main.l2dll, mdo.hs:30:30-42 _result :: IO (N Char) = _ f :: N Char = _ l :: N Char = _ x :: Char = 'h' Stopped in Main.newNode, mdo.hs:(8,17)-(9,42) _result :: IO (N Char) = _ b :: N Char = _ c :: Char = 'h' f :: N Char = _