2 tcfail010.hs:3: No instance for:
3 `PrelBase.Num [t{-aHi-}]'
5 at a use of an overloaded identifier: `PrelBase.+'
7 tcfail010.hs:3: No instance for:
8 `PrelBase.Num [t{-aHi-}]'
10 at a use of an overloaded identifier: `PrelBase.+'
13 Compilation had errors