read014.hs:4:1: Warning:
    Top-level binding with no type signature:
      ng1 :: forall t a. Num a => t -> a -> a

read014.hs:4:5: Warning: Defined but not used: ‘x’

read014.hs:6:10: Warning:
    No explicit implementation for
      ‘+’, ‘*’, ‘abs’, ‘signum’, and ‘fromInteger’
    In the instance declaration for ‘Num (a, b)’

read014.hs:8:53: Warning: Defined but not used: ‘x’