You will be given a definition of a task first, then some input of the task.
You are given a sentence in Japanese. Your job is to translate the Japanese sentence into Portugese.

夜中に講義室を閉鎖しましたですから通風はありません
Output:

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
Bloqueámo-las durante a noite de modo a que não recebessem ventilação.