Question 1
Square $S_1$ is $1\times1.$ For $i\geq1,$ the lengths of the sides of square $S_{i+1}$ are half the lengths of the sides of square $S_i,$ two adjacent sides of square $S_i$ are perpendicular bisectors of two adjacent sides of square $S_{i+1},$ and the other two sides of square $S_{i+1}$ are the perpendicular bisectors of two adjacent sides of square $S_{i+2}.$ The total area enclosed by at least one of $S_1,$ $S_2,$ $S_3,$ $S_4,$ $S_5$ can be written in the form $\frac{m}{n},$ where $m$ and $n$ are relatively prime positive integers. Find $m-n.$

