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1./badbangop.idr:7:1: error: ! is
2 not a valid
3 operator, expected: space
4(!) : List a -> Nat -> Maybe a
5^
6./baddoublebang.idr:6:28: error: unexpected
7 Operator without known fixity:
8 !!, expected: space
9doubleBang mmn = do pure !!mmn
10 ^