4. According to the pseudocode shown in the figure, the output result S is $\_\_\_\_$ . [Figure]
4. According to the pseudocode shown in the figure, the output result S is $\_\_\_\_$ .\\
\includegraphics[max width=\textwidth, alt={}, center]{02c41b96-8a48-49a2-8c05-38046d0bc54f-1_368_289_612_237}