tcfail036.hs:3:
    Duplicate or overlapping instance declarations
	for `Num NUM'
	    defined at tcfail036.hs:8 and defined at tcfail036.hs:6

tcfail036.hs:8:
    No instance for `Eq NUM'
    arising from an instance declaration at tcfail036.hs:8

tcfail036.hs:8:
    No instance for `Show NUM'
    arising from an instance declaration at tcfail036.hs:8

tcfail036.hs:9:
    Class used as a type constructor: Num
    When checking kinds in `Eq Num'

Compilation had errors