http://projects.class2017.cri-paris.org/2020/05/31/%d1%81%d0%be%d0%b4%d0%b5%d1%80%d0%b6%d0%b0%d0%bd%d0%ba%d0%b8-%d1%81%d0%bc%d0%be%d1%82%d1%80%d0%b5%d1%82%d1%8c-%d0%be%d0%bd%d0%bb%d0%b0%d0%b9%d0%bd-%d0%b2%d1%81%d0%b5-%d1%81%d0%b5%d1%80%d0%b8%d0%b8-49/ gdmk xz-llx from qqtp
