Sorry, I phrased myself poorly - in this case, the inputs that give incorrect output aren't very special, as opposed to 0,1,INT_MAX,... Although including numb

Sorry, I phrased myself poorly - in this case, the inputs that give incorrect output aren't very special, as opposed to 0,1,INT_MAX,... Although including numbers such as 10^N - 1 isn't out of the question either.