3 Ambiguous type variable(s) `$0'
4 in the constraint `Num [$0]'
5 arising from the literal `2' at tcfail008.hs:3
8 Ambiguous type variable(s) `$0'
9 in the constraint `Num $0'
10 arising from the literal `1' at tcfail008.hs:3
13 Compilation had errors