Не ленитесь, гугл знает все ответыhttps://www.google.com/search?safe=strict&rlz=1C1CHBF_enCA774CA774&ei=paMmXbyeDIal8APvxYY4&q=%D0%BF%D0%BE%D1%87%D0%B5%D0%BC%D1%83+%D0%BD%D0%BE%D1%87%D1%8C+%D1%81%D0%B5%D0%B4%D0%B0%D1%8F&oq=%D0%BF%D0%BE%D1%87%D0%B5%D0%BC%D1%83+%D0%BD%D0%BE%D1%87%D1%8C+%D1%81%D0%B5%D0%B4%D0%B0%D1%8F&gs_l=psy-ab.3..0i203.26501.26501..27605...0.0..0.80.80.1......0....2j1..gws-wiz.......0i71.7wFg7QW5__Y