https://xn--l1afu.xn--p1ai/%D0%BC%D0%B0%D1%82%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D1%8B/%d0%ba%d0%b0%d0%ba-%d0%bf%d0%be%d0%bf%d0%b0%d1%81%d1%82%d1%8c-%d0%b2-%d1%81%d0%b1%d0%be%d1%80%d0%bd%d1%83%d1%8e-%d0%b0%d0%bd%d0%b3%d0%bb%d0%b8%d0%b9%d1%81%d0%ba%d0%b8%d0%b9/В вкладке предметы, можете посмотреть про сборные. По каждому предмету они разные, со своей спецификой, правилами и тд.https://xn--l1afu.xn--p1ai/%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%82%D1%8B/%d0%bc%d0%b0%d1%82%d0%b5%d1%80%d0%b8%d0%b0%d0%bb%d1%8b-%d0%be%d0%b1-%d0%be%d0%bb%d0%b8%d0%bc%d0%bf%d0%b8%d0%b0%d0%b4%d0%b0%d1%85-%d0%b4%d0%bb%d1%8f-%d1%88%d0%ba%d0%be%d0%bb/