The two fixed point numbers are assumed to have the patterns $1.$ XXXX$.$XXXXX and $2.$ XXXX$.$XXXXX

First number has $9$ bits, including $5$ bits after point.

Second number has $9$ bits, including $5$ bits after point.

What is the pattern of the result of the subtraction of those numbers: First$-$Second?

Give the result pattern as A$.$B where A is the length of the result and B is the number of bits after point

Answer: