All wrong is-10, and all right is 40. For the convenience of description, the foundation is very unified, and it will not increase and will not affect the results.

For any question, there are three choices, right (+4), no answer (0) and wrong (-1).

In the range of-10-28, it can be realized at will, because there are at most 7 correct questions and 3 wrong questions, which just include the situations of 4*a-3, 4*a-2, 4*a- 1 4*a, so the scores all exist;

For fewer and fewer wrong questions, you need to analyze them, such as 29 points, you need to press 4*8 (right) -2 (wrong) =30, which obviously does not exist;

Similarly, if 4*9- 1=35, then points 33 and 34 do not exist;

4* 10=40, then points 37, 38 and 39 do not exist;

So the type of the score is 5 1-6=45.