You are given a sentence in Arabic. Your job is to translate the Arabic sentence into English.

كانا يجلسان جنبًا إلى جنب في شرفتهم الخلفية ينتبهان إلى الزقاق المشترك ويقوم تشك بتعليم تيم كيف يرصد السيارات المتخفية ، كيف يتفاوض في هجوم للشرطة في آخر الليل ، كيف وأين يختبئا.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
They would sit side by side on their back porch looking out into the shared alleyway and Chuck would coach Tim how to spot undercover cars, how to negotiate a late-night police raid, how and where to hide.