\begin{tabular}{c}
$\mathbf{3 7}$ \\
\hline 1156
\end{tabular}
37. A mechanical beetle crawls along a square spiral on the ground. It starts from the lower left corner and crawls in the direction of the arrows, sequentially for $1 \mathrm{~cm}, 1 \mathrm{~cm}, 1 \mathrm{~cm}, 1 \mathrm{~cm}, 2 \mathrm{~cm}, 2 \mathrm{~cm}, 1 \mathrm{~cm}, 3 \mathrm{~cm}, 3 \mathrm{~cm}$, $\qquad$. It crawls $1 \mathrm{~cm}$ per second. How many seconds after departure does it just finish crawling the 100th line segment?