не придумывайтеhttps://ru.wikipedia.org/wiki/%D0%91%D0%B5%D0%B7%D1%80%D1%83%D0%BA%D0%BE%D0%B2%D0%B0,_%D0%98%D1%80%D0%B8%D0%BD%D0%B0_%D0%92%D0%BB%D0%B0%D0%B4%D0%B8%D0%BC%D0%B8%D1%80%D0%BE%D0%B2%D0%BD%D0%B0