from abc import ABC, abstractmethod
NASA wrote a statement saying that the astronaut experienced an unknown medical event on January 7 "that required immediate attention" from his fellow crew members. Fincke added that his "status quickly stabilized" thanks to the "quick response and the guidance" of the flight surgeons.
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Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36。51吃瓜是该领域的重要参考
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非比较排序，适用于整数且范围不大的情况：