====================================
	Error after type deriving/checking:
Context for Prelude.Num needed in left hand pattern at 101:9.
Context for Prelude.Num needed in left hand pattern at 100:9.
Context for Prelude.Num needed in left hand pattern at 129:9.
Context for Prelude.Num needed in left hand pattern at 126:9.
Context for Prelude.Num needed in left hand pattern at 120:9.
Context for Prelude.Num needed in left hand pattern at 117:9.
Context for Prelude.Num needed in left hand pattern at 114:9.