Greater than sign (the last digit)+1, less than sign (the last digit)-1.
You can only fill in two types of questions at most.
()n & ltm
x y & gt()
When you encounter the first one, look at the symbol, the less than symbol is less than the symbol (the number behind it)-1, and then use m- 1 to calculate a number, which is the number of () n, that is, () n =? m- 1
For example:
()+6 & lt; 13, 13- 1 = 12, so () +6 = 12, () =6.
()-6 & lt; 13, 13- 1 = 12, so () -6 = 12, () = 18.
16-()& lt; 13, 13- 1 = 12, so 16-() = 12, () =4.
When you meet the second type, look at the symbol, which is greater than the symbol, and greater than the symbol (the number behind it)+1, and then use ()+1 to calculate a number, right? x y? How much is that? x y =? ()+ 1
For example:
8+3 & gt; (), 1 1? & gt(), 1 1? =()+ 1,()= 10
8? -3 & gt; (),5 & gt(),? 5? =()+ 1,()=4