Старт Математического лагеря. 12 октября 2021 года
Старт Математического лагеря. 12 октября 2021 года
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![Оригами в космосе, медицине и бронещитах [Veritasium]](https://sun9-36.userapi.com/uS9TwVYT7jxcM-ZpuieeGEoXko-EzowzkpM7tg/Z4GY5Yfc-I0.jpg)
3 months ago 02:09:52 1
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